#
f6d47fe5 |
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16-Aug-2022 |
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
usb: serial: Make ->set_termios() old ktermios const There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
9ec7e8d5 |
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22-Jun-2022 |
Jiang Jian <jiangjian@cdjrlc.com> |
USB: serial: fix repeated word "the" in comments There is a repeated word "the" in two comments that should be replaced or removed. Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> [ johan: replace one "the" with "that", merge the two cleanups, amend commit message ] Signed-off-by: Johan Hovold <johan@kernel.org>
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a65ab973 |
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25-Aug-2021 |
Utkarsh Verma <utkarshverma294@gmail.com> |
USB: serial: replace symbolic permissions by octal permissions Replace symbolic permission macros with octal permission numbers because octal permission numbers are easier to read and understand instead of their symbolic macro names. No functional change. Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
3ec2ff37 |
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10-Jun-2021 |
Jiri Slaby <jirislaby@kernel.org> |
tty: make use of tty_get_{char,frame}_size In the previous patch, we introduced tty_get_char_size() and tty_get_frame_size() for computing character and frame sizes, respectively. Here, we make use of them in various tty drivers where applicable. The stats look nice: 12 insertions, 169 deletions. Cc: Arnd Bergmann <arnd@arndb.de> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com> Cc: Oliver Neukum <oneukum@suse.com> Acked-by: Alex Elder <elder@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210610090247.2593-4-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d8f0209b |
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10-Jun-2021 |
Jiri Slaby <jirislaby@kernel.org> |
cypress_m8: switch data_bits to real character bits Make data_bits what it really is. Assign proper bit counts to data_bits instead of magic 0..3. There are two reasons: 1) it's clear what we store there, and 2) it will make the transition to tty_tty_get_char_size() in the next patch easier. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210610090247.2593-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
155591d3 |
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05-May-2021 |
Jiri Slaby <jirislaby@kernel.org> |
USB: serial: make usb_serial_driver::chars_in_buffer return uint tty_operations::chars_in_buffer is being switched to return uint. Do the same for usb_serial_driver's chars_in_buffer. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [ johan: amend commit message ] Signed-off-by: Johan Hovold <johan@kernel.org>
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#
94cc7aea |
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05-May-2021 |
Jiri Slaby <jirislaby@kernel.org> |
USB: serial: make usb_serial_driver::write_room return uint Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). Both of them are being updated to return an unsigned int. Switch also usb_serial_driver::write_room and all its users. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [ johan: amend commit message, drop unrelated comment change ] Signed-off-by: Johan Hovold <johan@kernel.org>
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#
c5d1448f |
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08-Feb-2021 |
Uwe Kleine-König <uwe@kleine-koenig.org> |
USB: serial: make remove callback return void All usb_serial drivers return 0 in their remove callbacks and driver core ignores the value returned by usb_serial_device_remove(). So change the remove callback to return void and return 0 unconditionally in usb_serial_device_remove(). Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20210208143149.963644-2-uwe@kleine-koenig.org Signed-off-by: Johan Hovold <johan@kernel.org>
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#
74b76256 |
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07-Jul-2020 |
Gustavo A. R. Silva <gustavoars@kernel.org> |
USB: serial: use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
5c45d04c |
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16-Jun-2020 |
James Hilliard <james.hilliard1@gmail.com> |
USB: serial: cypress_m8: enable Simply Automated UPB PIM This is a UPB (Universal Powerline Bus) PIM (Powerline Interface Module) which allows for controlling multiple UPB compatible devices from Linux using the standard serial interface. Based on vendor application source code there are two different models of USB based PIM devices in addition to a number of RS232 based PIM's. The vendor UPB application source contains the following USB ID's: #define USB_PCS_VENDOR_ID 0x04b4 #define USB_PCS_PIM_PRODUCT_ID 0x5500 #define USB_SAI_VENDOR_ID 0x17dd #define USB_SAI_PIM_PRODUCT_ID 0x5500 The first set of ID's correspond to the PIM variant sold by Powerline Control Systems while the second corresponds to the Simply Automated Incorporated PIM. As the product ID for both of these match the default cypress HID->COM RS232 product ID it assumed that they both use an internal variant of this HID->COM RS232 converter hardware. However as the vendor ID for the Simply Automated variant is different we need to also add it to the cypress_M8 driver so that it is properly detected. Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Link: https://lore.kernel.org/r/20200616220403.1807003-1-james.hilliard1@gmail.com Cc: stable@vger.kernel.org [ johan: amend VID define entry ] Signed-off-by: Johan Hovold <johan@kernel.org>
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#
ecefae6d |
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18-Jun-2019 |
Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
docs: usb: rename files to .rst and add them to drivers-api While there are a mix of things here, most of the stuff were written from Kernel developer's PoV. So, add them to the driver-api book. A follow up for this patch would be to move documents from there that are specific to sysadmins, adding them to the admin-guide. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2e75232b |
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21-Apr-2019 |
Johan Hovold <johan@kernel.org> |
USB: serial: cypress_m8: clean up initial-termios handling Now that init_termios() is only called on first use, we can clean up the cypress_m8 initial-termios handling. Note that only the earthmate chip type used settings different from the defaults provided by USB serial core, and that the chip type is indeed known when init_termios is called at tty-install time. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
817c0cfc |
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21-Apr-2019 |
Johan Hovold <johan@kernel.org> |
USB: serial: cypress_m8: drop unused termios Drop driver termios structure that held a copy of the tty termios for no good reason. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
da7d26a0 |
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21-Apr-2019 |
Johan Hovold <johan@kernel.org> |
USB: serial: cypress_m8: drop unused driver data flag Drop the isthrottled flag which has never been used. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
17c42e34 |
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04-Oct-2018 |
YueHaibing <yuehaibing@huawei.com> |
USB: serial: cypress_m8: remove set but not used variable 'iflag' Fixes gcc '-Wunused-but-set-variable' warning: drivers/usb/serial/cypress_m8.c: In function 'cypress_set_termios': drivers/usb/serial/cypress_m8.c:866:18: warning: variable 'iflag' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
56445eef |
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30-Sep-2018 |
Johan Hovold <johan@kernel.org> |
USB: serial: cypress_m8: fix interrupt-out transfer length Fix interrupt-out transfer length which was being set to the transfer-buffer length rather than the size of the outgoing packet. Note that no slab data was leaked as the whole transfer buffer is always cleared before each transfer. Fixes: 9aa8dae7b1fa ("cypress_m8: use usb_fill_int_urb where appropriate") Signed-off-by: Johan Hovold <johan@kernel.org>
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#
bbc1f57a |
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23-Sep-2018 |
Colin Ian King <colin.king@canonical.com> |
USB: serial: cypress_m8: fix spelling mistake "retreiving" -> "retrieving" Trivial fix to spelling mistake in dev_dbg message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
6ca98bc2 |
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02-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: Remove redundant license text Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5fd54ace |
|
03-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: add SPDX identifiers to all remaining files in drivers/usb/ It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
56e6d907 |
|
03-Jan-2017 |
Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> |
USB: serial: cypress_m8: remove unused variable The variable havedata was only being set but never used afterwards. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
c55aee1b |
|
30-Mar-2016 |
Oliver Neukum <oneukum@suse.com> |
USB: cypress_m8: add endpoint sanity check An attack using missing endpoints exists. CVE-2016-3137 Signed-off-by: Oliver Neukum <ONeukum@suse.com> CC: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
9db276f8 |
|
10-Jan-2016 |
Peter Hurley <peter@hurleysoftware.com> |
tty: Use termios c_*flag macros Expressions of the form "tty->termios.c_*flag & FLAG" are more clearly expressed with the termios flags macros, I_FLAG(), C_FLAG(), O_FLAG(), and L_FLAG(). Convert treewide. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d9a38a87 |
|
12-Mar-2014 |
Johan Hovold <johan@kernel.org> |
USB: serial: add missing newlines to dev_<level> messages. Add missing newlines to dev_<level> messages. Also make some messages less verbose where appropriate. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
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#
d7c933ae |
|
12-Mar-2014 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix potential scheduling while atomic Remove erroneous call to usb_clear_halt which is blocking and cannot be used in interrupt context. This code has possibly never been executed as it would cause an oops if it was. Simply treat a stalled-endpoint error as any other error condition. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
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#
803a5362 |
|
08-Jan-2014 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
usb: delete non-required instances of include <linux/init.h> None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
ab62a585 |
|
02-Jan-2014 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: switch to generic TIOCMIWAIT implementation Switch to the generic TIOCMIWAIT implementation which does not suffer from the races involved when using the deprecated sleep_on functions. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
7603381e |
|
02-Jan-2014 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: only wake up MSR queue on changes Only wake up MSR wait queue on actual modem-status changes. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d7be6221 |
|
26-Jun-2013 |
Johan Hovold <johan@kernel.org> |
USB: serial: set drain delay at port probe The port drain delay is constant and should be set at port probe rather than open. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
1143832e |
|
06-Jun-2013 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: ports: add minor and port number The usb_serial_port structure had the number field, which was the minor number for the port, which almost no one really cared about. They really wanted the number of the port within the device, which you had to subtract from the minor of the parent usb_serial_device structure. To clean this up, provide the real minor number of the port, and the number of the port within the serial device separately, as these numbers might not be related in the future. Bonus is that this cleans up a lot of logic in the drivers, and saves lines overall. Tested-by: Tobias Winter <tobias@linuxdingsda.de> Reviewed-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -- drivers/staging/serqt_usb2/serqt_usb2.c | 21 +++-------- drivers/usb/serial/ark3116.c | 2 - drivers/usb/serial/bus.c | 6 +-- drivers/usb/serial/console.c | 2 - drivers/usb/serial/cp210x.c | 2 - drivers/usb/serial/cypress_m8.c | 4 +- drivers/usb/serial/digi_acceleport.c | 6 --- drivers/usb/serial/f81232.c | 5 +- drivers/usb/serial/garmin_gps.c | 6 +-- drivers/usb/serial/io_edgeport.c | 58 ++++++++++++-------------------- drivers/usb/serial/io_ti.c | 21 ++++------- drivers/usb/serial/keyspan.c | 29 +++++++--------- drivers/usb/serial/metro-usb.c | 4 +- drivers/usb/serial/mos7720.c | 37 +++++++++----------- drivers/usb/serial/mos7840.c | 52 +++++++++------------------- drivers/usb/serial/opticon.c | 2 - drivers/usb/serial/pl2303.c | 2 - drivers/usb/serial/quatech2.c | 7 +-- drivers/usb/serial/sierra.c | 2 - drivers/usb/serial/ti_usb_3410_5052.c | 10 ++--- drivers/usb/serial/usb-serial.c | 7 ++- drivers/usb/serial/usb_wwan.c | 2 - drivers/usb/serial/whiteheat.c | 20 +++++------ include/linux/usb/serial.h | 6 ++- 24 files changed, 133 insertions(+), 180 deletions(-)
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#
6529591e |
|
31-May-2013 |
Robert Butora <robert.butora.fi@gmail.com> |
USB: Serial: cypress_M8: Enable FRWD Dongle hidcom device The patch adds a new HIDCOM device and does not affect other devices driven by the cypress_M8 module. Changes are: - add VendorID ProductID to device tables - skip unstable speed check because FRWD uses 115200bps - skip reset at probe which is an issue workaround for this particular device. Signed-off-by: Robert Butora <robert.butora.fi@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
87ddf4dc |
|
20-Mar-2013 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: remove bogus disconnect test from close Remove disconnected test from close which did not protect any device IO at all. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
c648e94e |
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20-Mar-2013 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix TIOCMIWAIT and disconnect Use tty-port modem-status-change wait queue on which processes are woken up at hangup and disconnect. Currently a process waiting on modem-status changes will not be woken on device disconnect. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
493516e3 |
|
20-Mar-2013 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: replace custom ioctl operation with tiocmiwait Replace custom ioctl operation with tiocmiwait. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
356050d8 |
|
19-Mar-2013 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix use-after-free in TIOCMIWAIT Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Also remove bogus test for private data pointer being NULL as it is never assigned in the loop. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2e124b4a |
|
03-Jan-2013 |
Jiri Slaby <jirislaby@kernel.org> |
TTY: switch tty_flip_buffer_push Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2f693357 |
|
03-Jan-2013 |
Jiri Slaby <jirislaby@kernel.org> |
TTY: convert more flipping functions Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty pointer in many call sites. Only tty_port will be needed and hence no more tty_port_tty_get calls in those paths. Now 4 string flipping ones are on turn: * tty_insert_flip_string_flags * tty_insert_flip_string_fixed_flag * tty_prepare_flip_string * tty_prepare_flip_string_flags Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
bcbec053 |
|
31-Oct-2012 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove driver version information Remove all MODULE_VERSION macros and driver-version information (except for garmin_gps which uses it in a status reply). It is the kernel version that matters and not some private version scheme which rarely even gets updated. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5c1a0f41 |
|
17-Oct-2012 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix port-data memory leak Fix port-data memory leak by replacing attach and release with port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Compile-only tested. Cc: <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
f462376e |
|
18-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: Serial: cypress_m8.c: remove debug module parameter Now that all usb-serial modules are only using dev_dbg() the debug module parameter does not do anything at all, so remove it to reduce any confusion if someone were to try to use it. CC: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
59d33f2f |
|
18-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove debug parameter from usb_serial_debug_data() We should use dev_dbg() for usb_serial_debug_data() like all of the rest of the usb-serial drivers use, so remove the debug parameter as it's not needed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
dfa1c315 |
|
14-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: cypress_m8.c: remove dbg() usage dbg() was a very old USB-serial-specific macro. This patch removes it from being used in the driver and uses dev_dbg() instead. CC: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
adc8d746 |
|
14-Jul-2012 |
Alan Cox <alan@linux.intel.com> |
tty: move the termios object into the tty This will let us sort out a whole pile of tty related races. The alternative would be to keep points and refcount the termios objects. However 1. They are tiny anyway 2. Many devices don't use the stored copies 3. We can remove a pty special case Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
68e24113 |
|
08-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: rework usb_serial_register/deregister_drivers() This reworks the usb_serial_register_drivers() and usb_serial_deregister_drivers() to not need a pointer to a struct usb_driver anymore. The usb_driver structure is now created dynamically and registered and unregistered as needed. This saves lines of code in each usb-serial driver. All in-kernel users of these functions were also fixed up at this time. The pl2303 driver was tested that everything worked properly. Thanks for the idea to do this from Alan Stern. Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrew Worsley <amworsley@gmail.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Dan Carpenter <error27@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Donald Lee <donald@asix.com.tw> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Johan Hovold <jhovold@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Oliver Neukum <oliver@neukum.name> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Berger <pberger@brimson.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Support Department <support@connecttech.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Wang YanQing <Udknight@gmail.com> Cc: William Greathouse <wgreathouse@smva.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
32078f91 |
|
07-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove usb_serial_disconnect call in all drivers This is now set by the usb-serial core, no need for the driver to individually set it. Thanks to Alan Stern for the idea to get rid of it. Cc: William Greathouse <wgreathouse@smva.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Oliver Neukum <oliver@neukum.name> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Support Department <support@connecttech.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Johan Hovold <jhovold@gmail.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Andrew Worsley <amworsley@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Dan Carpenter <error27@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Donald Lee <donald@asix.com.tw> Cc: Julia Lawall <julia@diku.dk> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: Wang YanQing <Udknight@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
5026bb07 |
|
07-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove usb_serial_probe call in all drivers This is now set by the usb-serial core, no need for the driver to individually set it. Thanks to Alan Stern for the idea to get rid of it. Cc: William Greathouse <wgreathouse@smva.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Oliver Neukum <oliver@neukum.name> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Support Department <support@connecttech.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Johan Hovold <jhovold@gmail.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Andrew Worsley <amworsley@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Dan Carpenter <error27@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Donald Lee <donald@asix.com.tw> Cc: Julia Lawall <julia@diku.dk> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: Wang YanQing <Udknight@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
108feb66 |
|
03-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: cypress_m8.c: remove dbg() tracing calls dbg() was used a lot a long time ago to trace code flow. Now that we have ftrace, this isn't needed at all, so remove these calls. CC: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
7e3131f8 |
|
28-Feb-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: cypress_m8.c: use module_usb_serial_driver This converts the cypress_m8.c driver to use the module_usb_serial_driver() call instead of having to have a module_init/module_exit function, saving a lot of duplicated code. CC: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
08a4f6bc |
|
23-Feb-2012 |
Alan Stern <stern@rowland.harvard.edu> |
usb-serial: use new registration API in [a-c]* drivers This patch (as1523) modifies the following usb-serial drivers to utilize the new usb_serial_{de}register_drivers() routines: aircable, ark3116, belkin_sa, ch341, cp210x, cyberjack, and cypress_m8. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
22a416c4 |
|
10-Feb-2012 |
Johan Hovold <johan@kernel.org> |
USB: serial: use dev_err_console in custom write paths Use dev_err_console in write paths for devices which can be used as a console but do not use the generic write implementation. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
90ab5ee9 |
|
12-Jan-2012 |
Rusty Russell <rusty@rustcorp.com.au> |
module_param: make bool parameters really bool (drivers & misc) module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
|
#
5833041f |
|
06-Nov-2011 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove unnecessary reinitialisations of urb->dev Remove unnecessary reinitialisations of urb->dev before each submission, which were based on the (no longer valid) assumption that serial->dev will be set to NULL on close. Compile-only tested. Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Support Department <support@connecttech.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
14b54e39 |
|
06-Nov-2011 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove changelogs and old todo entries Remove remaining changelogs from file headers (can still be retrieved through git). Remove even older changelog entries stored in Changelog.history. Remove outdated todo entries from belkin_sa. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
25985edc |
|
30-Mar-2011 |
Lucas De Marchi <lucas.demarchi@profusion.mobi> |
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
|
#
00a0d0d6 |
|
14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tty: remove filp from the USB tty ioctls We don't use it so we can trim it from here as we try and stamp the file object dependencies out of the serial code. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
20b9d177 |
|
14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tiocmset: kill the file pointer argument Doing tiocmget was such fun we should do tiocmset as well for the same reasons Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
60b33c13 |
|
14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tiocmget: kill off the passing of the struct file We don't actually need this and it causes problems for internal use of this functionality. Currently there is a single use of the FILE * pointer. That is the serial core which uses it to check tty_hung_up_p. However if that is true then IO_ERROR is also already set so the check may be removed. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
7f26b3a7 |
|
04-Aug-2010 |
Joe Perches <joe@perches.com> |
drivers/usb: Remove unnecessary return's from void functions Greg prefers this to go through the trivial tree. http://lkml.org/lkml/2010/6/24/1 There are about 2500 void functions in drivers/usb Only a few used return; at end of function. Standardize them a bit. Moved a statement down a line in drivers/usb/host/u132-hcd.c Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
#
117fb8d0 |
|
16-May-2010 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: use kfifo to implement write buffering Kill custom fifo implementation. Note that cypress_m8 has no port write fifo as it has no bulk-out endpoint. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
c4f4736f |
|
16-May-2010 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: remove unused drain define Driver uses tty-port drain these days. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
70ced221 |
|
07-May-2010 |
Johan Hovold <johan@kernel.org> |
USB: tty: fix incorrect use of tty_insert_flip_string_fixed_flag Fix regression introduced by commit a108bfcb372d8c4452701039308fb95747911c59 (USB: tty: Prune uses of tty_request_room in the USB layer) which broke three drivers (cypress_m8, digi_acceleport and spcp8x5) through incorrect use of tty_insert_flip_string_fixed_flag. Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@kernel.org> [.34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
1f87158e |
|
17-Feb-2010 |
Alan Stern <stern@rowland.harvard.edu> |
USB: remove references to port->port.count from the serial drivers This patch (as1344) removes references to port->port.count from the USB serial drivers. Now that serial ports are properly reference counted, port.count checking is unnecessary and incorrect. Drivers should assume that the port is in use from the time the open method runs until the close method is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
a108bfcb |
|
18-Feb-2010 |
Alan Cox <alan@linux.intel.com> |
USB: tty: Prune uses of tty_request_room in the USB layer We have lots of callers that do not need to do this in the first place. Remove the calls as they both cost CPU and for big buffers can mess up the multi-page allocation avoidance. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
a45a1e07 |
|
16-Jan-2010 |
Julia Lawall <julia@diku.dk> |
USB: serial: Eliminate useless code The variables priv and portdata are initialized twice to the same (side effect-free) expressions. Drop one initialization in each case. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) // <smpl> @forall@ idexpression *x; identifier f!=ERR_PTR; @@ x = f(...) ... when != x ( x = f(...,<+...x...+>,...) | * x = f(...) ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
7d40d7e8 |
|
10-Jan-2010 |
Németh Márton <nm127@freemail.hu> |
USB serial: make USB device id constant The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
0f2c2d7b |
|
31-Dec-2009 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: use put_unaligned_le32() where necessary Cc: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
974fccb7 |
|
28-Dec-2009 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix endianess bug Cc: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
0954644b |
|
28-Dec-2009 |
Johan Hovold <johan@kernel.org> |
USB: cypress_m8: fix DMA buffer on stack Cc: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
c312659c |
|
18-Dec-2009 |
Mike Frysinger <vapier@gentoo.org> |
USB: cypress_m8: allow unstable baud rates I've got a crappy cypress converter here, and while running at higher baud rates craps out on throughput, it works fine with lower ones. While it'd be nice to simply use a lower baud rate, not all devices can be configured this way, and it is possible to (slowly) interact at higher rates by sending a byte at a time. So let people force higher rates when they need it via a module parameter. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
2805eb13 |
|
18-Dec-2009 |
Mike Frysinger <vapier@gentoo.org> |
USB: cypress_m8: unify confusing new baudrate check The current code has a confusing duplicate new_baudrate init when setting the serial parameters. So just combine the if statement checks to avoid this. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
64319dd7 |
|
18-Dec-2009 |
Mike Frysinger <vapier@gentoo.org> |
USB: cypress_m8: stop using USB debug driver config The USB_SERIAL_DEBUG Kconfig is for the USB serial debug driver, not for generically enabling debug output in random USB serial drivers. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
3ad2f3fb |
|
02-Feb-2010 |
Daniel Mack <daniel@caiaq.de> |
tree-wide: Assorted spelling fixes In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
#
63832515 |
|
07-Oct-2009 |
Oliver Neukum <oliver@neukum.org> |
USB: serial: fix assumption that throttle/unthrottle cannot sleep many serial subdrivers are clearly written as if throttle/unthrottle cannot sleep. This leads to unneeded atomic submissions. This patch converts affected drivers in a way to makes very clear that throttle/unthrottle can sleep. Thus future misdesigns can be avoided and efficiency and reliability improved. This removes any such assumption using GFP_KERNEL and spin_lock_irq() Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
fe1ae7fd |
|
19-Sep-2009 |
Alan Cox <alan@linux.intel.com> |
tty: USB serial termios bits Various drivers have hacks to mangle termios structures. This stems from the fact there is no nice setup hook for configuring the termios settings when the port is created Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
a509a7e4 |
|
19-Sep-2009 |
Alan Cox <alan@linux.intel.com> |
tty: USB does not need the filp argument in the drivers And indeed none of them use it. Clean this up as it will make moving to a standard open method rather easier. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
4d2fae8b |
|
08-Jul-2009 |
Alan Stern <stern@rowland.harvard.edu> |
USB: cypress_m8: remove invalid Clear-Halt This patch (as1265) removes an erroneous call to usb_clear_halt from the cypress_m8 driver. The call isn't valid because it is made from interrupt context whereas usb_clear_halt is a blocking routine. Presumably the code has never been executed; if it did it would cause an oops. So instead treat -EPIPE like any other sort of unexplained error. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
f9c99bb8 |
|
02-Jun-2009 |
Alan Stern <stern@rowland.harvard.edu> |
USB: usb-serial: replace shutdown with disconnect, release This patch (as1254) splits up the shutdown method of usb_serial_driver into a disconnect and a release method. The problem is that the usb-serial core was calling shutdown during disconnect handling, but drivers didn't expect it to be called until after all the open file references had been closed. The result was an oops when the close method tried to use memory that had been deallocated by shutdown. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
335f8514 |
|
10-Jun-2009 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
tty: Bring the usb tty port structure into more use This allows us to clean stuff up, but is probably also going to cause some app breakage with buggy apps as we now implement proper POSIX behaviour for USB ports matching all the other ports. This does also mean other apps that break on USB will now work properly. Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
2400a2bf |
|
20-Apr-2009 |
Oliver Neukum <oliver@neukum.org> |
USB: removal of tty->low_latency hack dating back to the old serial code This removes tty->low_latency from all USB serial drivers that push data into the tty layer at hard interrupt context. It's no longer needed and actually harmful. Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
194343d9 |
|
20-Aug-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: remove use of err() in drivers/usb/serial err() is going away, so switch to dev_err() or printk() if it's really needed. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
c197a8db |
|
18-Aug-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: remove info() macro from usb/serial drivers USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
4a90f09b |
|
13-Oct-2008 |
Alan Cox <alan@redhat.com> |
tty: usb-serial krefs Use kref in the USB serial drivers so that we don't free tty structures from under the URB receive handlers as has historically been the case if you were unlucky. This also gives us a framework for general tty drivers to use tty_port objects and refcount. Contains two err->dev_err changes merged together to fix clashes in the -next tree. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
77336828 |
|
22-Jul-2008 |
Alan Cox <alan@redhat.com> |
usb-cypress: There is no 0 case to go with CS5/6/7/8 so remove the test Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
813a224f |
|
22-Jul-2008 |
Alan Cox <alan@redhat.com> |
cypress_m8: coding style Coding style clean ups Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
95da310e |
|
22-Jul-2008 |
Alan Cox <alan@redhat.com> |
usb_serial: API all change USB serial likes to use port->tty back pointers for the real work it does and to do so without any actual locking. Unfortunately when you consider hangup events, hangup/parallel reopen or even worse hangup followed by parallel close events the tty->port and port->tty pointers are not guaranteed to be the same as port->tty is the active tty while tty->port is the port the tty may or may not still be attached to. So rework the entire API to pass the tty struct. For console cases we need to pass both for now. This shows up multiple drivers that immediately crash with USB console some of which have been fixed in the process. Longer term we need a proper tty as console abstraction Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
fd05e720 |
|
28-Apr-2008 |
Al Viro <viro@ftp.linux.org.uk> |
drivers/usb annotations and fixes * endianness annotations * endianness fixes * missing get_unaligned/put_unaligned It's pretty much all over the place, changes to different files are independent. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Serial-parts-Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
#
cdc97792 |
|
24-Feb-2008 |
Ming Lei <tom.leiming@gmail.com> |
USB: remove unnecessary type casting of urb->context urb->context code cleanup Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
441b62c1 |
|
03-Mar-2008 |
Harvey Harrison <harvey.harrison@gmail.com> |
USB: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
0ba4034e |
|
16-Apr-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: serial: remove unneeded number endpoints settings The usb-serial core no longer checks these fields so remove them from all of the individual drivers. They will be removed from the usb-serial core in a patch later in the series. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
8873aaa6 |
|
10-Mar-2008 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
USB: cypress_m8: Speed handling The recent changes to this driver cleaned it up a lot, follow that up by sorting the speed side of things out as well Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
92983c21 |
|
10-Feb-2008 |
Mike Isely <isely@pobox.com> |
USB: cypress_m8: Limit baud rate to <=4800 for USB low speed devices The cypress app note for the M8 states that for the USB low speed version of the part, throughput is effectively limited to 800 bytes/sec. So if we were to try a faster baud rate in such cases then we risk overrun errors on receive. Best to just identify this case and limit the rate to 4800 baud or less (by ignoring any request to set a faster rate). The old baud rate setting code was somewhat fragile; this change also hopefully makes it easier in the future to better checking / limiting. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
6768306c |
|
10-Feb-2008 |
Mike Isely <isely@pobox.com> |
USB: cypress_m8: Get rid of pointless NULL check Remove a NULL check in cypress_m8; the check is useless in this context because it is referenced earlier in the same code path thus the kernel would be oops'ed before reaching this point anyway. (And it's really pointless here anyway; if this pointer somehow is NULL the driver is going to have serious problems in many other places.) Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
3d6aa320 |
|
10-Feb-2008 |
Mike Isely <isely@pobox.com> |
USB: cypress_m8: Don't issue GET_CONFIG for certain devices Earthmate LT-20 devices (both "old" and "new" versions) can't tolerate a GET_CONFIG command. The original Earthmate has no trouble with this. Presumably other non-Earthmate devices are still OK as well. This change disables the use of GET_CONFIG for cases where it is known not to work. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
3416eaa1 |
|
10-Feb-2008 |
Mike Isely <isely@pobox.com> |
USB: cypress_m8: Packet format is separate from characteristic size cypress_m8: Packet format is separate from characteristic size The Cypress app note states that when using an 8 byte packet buffer size that the packet format is modified (to be more compact). However I have since discovered that newer DeLorme Earthmate LT-20 devices (those that are low speed USB with 8 byte packet size) STILL use the format that is really supposed to correspond to 32 byte packets. Further confusing things is the subsequent discovery that there are actually two different types of LT-20 - older LT-20's use 32 byte packets which is probably why this issue wasn't originally encountered. The solution here is to flag the packet format separately from the buffer size. Then at initialization time, identify the correct combination and set it up. This is a critical fix for anyone with a newer LT-20. Older devices and non-Earthmate devices should remain unaffected by this change. (If other devices behave in this, uh, unexpected manner, it's now just a simple 1 line change to fix them as well (change the pkt_fmt member for that device). Default behavior with this patch is still to drive the format as per the app-note; of course for Earthmate devices this is overridden. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
93075544 |
|
10-Feb-2008 |
Mike Isely <isely@isely.net> |
USB: cypress_m8: Feature buffer fixes cypress_m8: Feature buffer fixes From: Mike Isely <isely@pobox.com> Don't hardcode the feature buffer size; use sizeof() instead. That way we can easily specify the size in a single spot. Speaking of the feature buffer size, the Cypress app note (and further testing with a DeLorme Earthmate) suggests that this size should be 5 not 8 bytes. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
6f6f06ee |
|
04-Mar-2008 |
Dmitry Shapin <shapin@googlemail.com> |
USB: cypress_m8: add UPS Powercom (0d9f:0002) Add support for UPS Powercom USB interface (0d9f:0002) in chip CY7C63723. In my case, this Powercom BNT800AP. Signed-off-by: Dmitry Shapin <shapin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
9e3b1d8e |
|
22-Jan-2008 |
Oliver Neukum <oliver@neukum.org> |
USB: stop abuse of intfdata in cypress_m8 this driver uses usb_get_intfdata() == NULL as a test for disconnect(). You must not do that as this races with probe(). By the time you test your erstwhile interface may already be somebody else's interface. This fixes the close() method of cypress_m8 to use the recently introduced flag and use locking against disconnect() where required in close(). Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
8d7bc55e |
|
15-Jun-2007 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: serial: cypress_m8: clean up urb->status usage This done in anticipation of removal of urb->status, which will make that patch easier to review and apply in the future. Cc: <linux-usb-devel@lists.sourceforge.net> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Neil Whelchel <koyama@firstlight.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
d9b1b787 |
|
17-Dec-2006 |
Johannes Hölzl <johannes.hoelzl@gmx.de> |
USB serial: add driver pointer to all usb-serial drivers Every usb serial driver should have a pointer to the corresponding usb driver. So the usb serial core can add a new id not only to the usb serial driver, but also to the usb driver. Also the usb drivers of ark3116, mos7720 and mos7840 missed the flag no_dynamic_id=1. This is added now. Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
b1cff285 |
|
04-Dec-2006 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
usb serial: Eliminate bogus ioctl code Several drivers have bogus ioctl code that tries unneccessarily to override the standard processing. In the three cases here the actual code is not only wrong but also not required as they implement the proper set_termios method as well. Remove the junk. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
5cbded58 |
|
13-Dec-2006 |
Robert P. J. Day <rpjday@mindspring.com> |
[PATCH] getting rid of all casts of k[cmz]alloc() calls Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
#
606d099c |
|
08-Dec-2006 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
#
2e46b748 |
|
17-Nov-2006 |
Mariusz Kozlowski <m.kozlowski@tuxland.pl> |
usb: cypress_m8 init error path fix If at some point cypress_init() fails deregister only the resources that were registered until that point. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
7d12e780 |
|
05-Oct-2006 |
David Howells <dhowells@redhat.com> |
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
|
#
78aef519 |
|
29-Aug-2006 |
Mike Isely <isely@pobox.com> |
cypress_m8: implement graceful failure handling When receiving a fatal error from the USB core, e.g. EILSEQ (which can happen if the polling interval is too short), fail gracefully. Previously the driver would fill the log with useless error messages or (more alarmingly) silently spin forever trying to write updated control information to the device. This change implements a new flag which if cleared indicates that the driver has failed. The flag will be set on initialization, cleared on fatal errors, and anything else that touches the USB port in the driver will abort if the flag is clear. When the flag is cleared, a message will be logged indicating that the driver has failed. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
48298e50 |
|
29-Aug-2006 |
Mike Isely <isely@pobox.com> |
cypress_m8: improve control endpoint error handling Fix usb core function error return checks to look for negative errno values, not positive errno values. This bug had rendered those checks useless. Also remove attempted error recovery on control endpoints for EPIPE - with control endpoints EPIPE does not indicate a halted endpoint so trying to recover with usb_clear_halt() is not the correct action. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
9aa8dae7 |
|
29-Aug-2006 |
Mike Isely <isely@pobox.com> |
cypress_m8: use usb_fill_int_urb where appropriate Rather than directly filling in URB fields, it's safer to use usb_fill_int_urb(). This improves robustness of the driver; URB changes in the future will not go uninitialized here. That point not withstanding, this driver should at least be self-consistent. Either use usb_fill_int_urb() everywhere or don't bother with it all. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
0257fa9f |
|
29-Aug-2006 |
Mike Isely <isely@pobox.com> |
cypress_m8: use appropriate URB polling interval The polling interval for the device can't always be 1msec. If it is too quick, the device can fail causing a fatal (to the driver) EILSEQ error from the USB core. The actual correct value is reported by the device as part of its configuration data, so use that value as the default. On a DeLorme Earthmate for example, the device reports that it wants a 6msec interval. As part of this fix, the "interval" module option has been fixed as well; the device's default can be overridden by specifying interval=<value> as a module option. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
a969888c |
|
11-Jul-2006 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: move usb-serial.h to include/linux/usb/ USB serial outside of the kernel tree can not build properly due to usb-serial.h being buried down in the source tree. This patch moves the location of the file to include/linux/usb and fixes up all of the usb serial drivers to handle the move properly. Cc: Sergei Organov <osv@javad.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
6ab3d562 |
|
30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h> Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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#
cf2c7481 |
|
22-May-2006 |
Pete Zaitcev <zaitcev@redhat.com> |
[PATCH] USB serial: encapsulate schedule_work, remove double-calling I'm going to throw schedule_work away, it's retarded. But for starters, let's have it encapsulated. Also, generic and whiteheat were both calling usb_serial_port_softint and scheduled work. Only one was necessary. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
a5c44e29 |
|
01-Mar-2006 |
Lonnie Mendez <lmendez19@austin.rr.com> |
[PATCH] USB: cypress_m8: add support for the Nokia ca42-version 2 cable This patch adds support for the Nokia ca42 version 2 cable to the cypress_m8 driver. The device was tested by others with this patch and found to be compatible with the cypress_m8 driver. A special note should be taken that this cable seems to vary in the type of chipset used. This patch supports the cable with product id 0x4101. Signed-off-by: Lonnie Mendez <lmendez19@austin.rr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
80b6ca48 |
|
27-Feb-2006 |
Eric Sesterhenn <snakebyte@gmx.de> |
[PATCH] USB: kzalloc() conversion for rest of drivers/usb Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
33f0f88f |
|
09-Jan-2006 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
[PATCH] TTY layer buffering revamp The API and code have been through various bits of initial review by serial driver people but they definitely need to live somewhere for a while so the unconverted drivers can get knocked into shape, existing drivers that have been updated can be better tuned and bugs whacked out. This replaces the tty flip buffers with kmalloc objects in rings. In the normal situation for an IRQ driven serial port at typical speeds the behaviour is pretty much the same, two buffers end up allocated and the kernel cycles between them as before. When there are delays or at high speed we now behave far better as the buffer pool can grow a bit rather than lose characters. This also means that we can operate at higher speeds reliably. For drivers that receive characters in blocks (DMA based, USB and especially virtualisation) the layer allows a lot of driver specific code that works around the tty layer with private secondary queues to be removed. The IBM folks need this sort of layer, the smart serial port people do, the virtualisers do (because a virtualised tty typically operates at infinite speed rather than emulating 9600 baud). Finally many drivers had invalid and unsafe attempts to avoid buffer overflows by directly invoking tty methods extracted out of the innards of work queue structs. These are no longer needed and all go away. That fixes various random hangs with serial ports on overflow. The other change in here is to optimise the receive_room path that is used by some callers. It turns out that only one ldisc uses receive room except asa constant and it updates it far far less than the value is read. We thus make it a variable not a function call. I expect the code to contain bugs due to the size alone but I'll be watching and squashing them and feeding out new patches as it goes. Because the buffers now dynamically expand you should only run out of buffering when the kernel runs out of memory for real. That means a lot of the horrible hacks high performance drivers used to do just aren't needed any more. Description: tty_insert_flip_char is an old API and continues to work as before, as does tty_flip_buffer_push() [this is why many drivers dont need modification]. It does now also return the number of chars inserted There are also tty_buffer_request_room(tty, len) which asks for a buffer block of the length requested and returns the space found. This improves efficiency with hardware that knows how much to transfer. and tty_insert_flip_string_flags(tty, str, flags, len) to insert a string of characters and flags For a smart interface the usual code is len = tty_request_buffer_room(tty, amount_hardware_says); tty_insert_flip_string(tty, buffer_from_card, len); More description! At the moment tty buffers are attached directly to the tty. This is causing a lot of the problems related to tty layer locking, also problems at high speed and also with bursty data (such as occurs in virtualised environments) I'm working on ripping out the flip buffers and replacing them with a pool of dynamically allocated buffers. This allows both for old style "byte I/O" devices and also helps virtualisation and smart devices where large blocks of data suddenely materialise and need storing. So far so good. Lots of drivers reference tty->flip.*. Several of them also call directly and unsafely into function pointers it provides. This will all break. Most drivers can use tty_insert_flip_char which can be kept as an API but others need more. At the moment I've added the following interfaces, if people think more will be needed now is a good time to say int tty_buffer_request_room(tty, size) Try and ensure at least size bytes are available, returns actual room (may be zero). At the moment it just uses the flipbuf space but that will change. Repeated calls without characters being added are not cumulative. (ie if you call it with 1, 1, 1, and then 4 you'll have four characters of space. The other functions will also try and grow buffers in future but this will be a more efficient way when you know block sizes. int tty_insert_flip_char(tty, ch, flag) As before insert a character if there is room. Now returns 1 for success, 0 for failure. int tty_insert_flip_string(tty, str, len) Insert a block of non error characters. Returns the number inserted. int tty_prepare_flip_string(tty, strptr, len) Adjust the buffer to allow len characters to be added. Returns a buffer pointer in strptr and the length available. This allows for hardware that needs to use functions like insl or mencpy_fromio. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
943ffb58 |
|
09-Jan-2006 |
Adrian Bunk <bunk@stusta.de> |
spelling: s/retreive/retrieve/ Signed-off-by: Adrian Bunk <bunk@stusta.de>
|
#
ba9dc657 |
|
16-Nov-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: allow usb drivers to disable dynamic ids This lets drivers, like the usb-serial ones, disable the ability to add ids from sysfs. The usb-serial drivers are "odd" in that they are really usb-serial bus drivers, not usb bus drivers, so the dynamic id logic will have to go into the usb-serial bus core for those drivers to get that ability. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
#
269bda1c |
|
20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: move name to driver structure This fixes up a lot of problems in sysfs with some of the usb serial drivers, they had incorrect driver names. Also saves a tiny ammount of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
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18fcac35 |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: get rid of the .owner field in usb_serial_driver Don't duplicate something that's already in struct driver. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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ea65370d |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: rename usb_serial_device_type to usb_serial_driver I'm tired of trying to explain why a "device_type" is really a driver. This better describes exactly what this structure is. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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22c43863 |
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15-Aug-2005 |
Nishanth Aravamudan <nacc@us.ibm.com> |
[PATCH] drivers/usb: fix-up schedule_timeout() usage Description: Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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b9db07fb |
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12-Jul-2005 |
Lonnie Mendez <lmendez19@austin.rr.com> |
[PATCH] USB: whitespace fixes for cypress_m8 driver Reading this driver I noticed some trailing whitespaces and tabs so I removed them with some 80th column fitting and a few more similar things. From: Carlo Perassi <carlo@linux.it> Signed-off-by: Lonnie Mendez <dignome@gmail.com> Signed-off-by: Carlo Perassi <carlo@linux.it> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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25b6f08e |
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10-May-2005 |
Lonnie Mendez <lmendez19@austin.rr.com> |
[PATCH] USB: cypress_m8: add support for the DeLorme Earthmate lt-20 This patch adds support for the DeLorme Earthmate lt-20 to the cypress_m8 driver. The device was tested and found to be compatible with the cypress_m8 driver. This is a resend with the complete patch which properly compiles. Adds support for the DeLorme Earthmate lt-20 to the cypress_m8 driver. Signed-off-by: Lonnie Mendez <lmendez19@austin.rr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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3cb4a4f7 |
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03-May-2005 |
Lonnie Mendez <lmendez19@austin.rr.com> |
[PATCH] USB cypress_m8: update kernel driver with current source Fixed problem where setting or retreiving the serial config would fail with EPIPE. Removed CRTS toggling so the driver behaves more like other usbserial adapters. Issued new interval of 1ms instead of the default bInterval. As a result, transfer speed has been substantially increased. From avg. 850bps to avg. 3300bps. Also added new module parameter 'interval' to tweak the interval in case this change causes problems for someone. Cleaned up code and formatting issues so source is more readable. Replaced the C++ style comments. Various other code cleanups. Signed-off-by: Lonnie Mendez <lmendez19@austin.rr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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093cf723 |
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03-May-2005 |
Steven Cole <elenstev@mesatop.com> |
[PATCH] USB: Spelling fixes for drivers/usb. Here are some spelling corrections for drivers/usb. cancelation -> cancellation succesful -> successful cancelation -> cancellation decriptor -> descriptor Initalize -> Initialize wierd -> weird Protocoll -> Protocol occured -> occurred successfull -> successful Procesing -> Processing devide -> divide Isochronuous -> Isochronous noticable -> noticeable Basicly -> Basically transfering -> transferring intialize -> initialize Incomming -> Incoming additionnal -> additional asume -> assume Unfortunatly -> Unfortunately retreive -> retrieve tranceiver -> transceiver Compatiblity -> Compatibility Incorprated -> Incorporated existance -> existence Ununsual -> Unusual Signed-off-by: Steven Cole <elenstev@mesatop.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1bc3c9e1 |
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18-Apr-2005 |
Jesper Juhl <juhl-lkml@dif.dk> |
[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULL Get rid of a bunch of redundant NULL pointer checks in drivers/usb/*, there's no need to check a pointer for NULL before calling kfree() on it. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Index: gregkh-2.6/drivers/usb/class/audio.c ===================================================================
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1da177e4 |
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16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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