sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (2 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked). Use it in
preparation for a general review of all nodes.
This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Reviewed by: hselasky, kib
Approved by: kib (mentor)
Differential Revision: https://reviews.freebsd.org/D23632

Centralize USB device mode bus power reporting, and add
hw.usb.template_power sysctl to control it.

Reviewed by: hselasky@ (earlier version)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Add new PIDs for Audio, CDCE, MTP, and Mass Storage, from
https://github.com/obdev/v-usb/blob/master/usbdrv/USB-IDs-for-free.txt.

Big thanks to Christian Starkjohann for allocating those.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Use USB Vendor Identifiers and Product Identifiers provided by V-USB
(https://github.com/obdev/v-usb/blob/master/usbdrv/USB-IDs-for-free.txt).
Previously we were using an invalid (not assigned to us) VID.

Reviewed by: hselasky@
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Add #defines for vendor/product USB IDs. No functional changes.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Give USB template SYSUNINIT()'s a uniq name to avoid symbol name collision
when building stand/usb. Regression after r328194.

MFC after: 1 week
Sponsored by: Mellanox Technologies

Add sysctls to control device side USB identifiers. This makes it
possible to change string and numeric vendor and product identifiers,
as well as anything else there might be to change for a particular
device side template, eg the MAC address.

Reviewed by: hselasky@
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D13920

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Fix MTP description in the comment.

MFC after: 1 month

Use string literals in string descriptors for marginally
better readability.

Submitted by: Christoph Mallon

Provide one global language string descriptor for
american english instead of giving each module its
own.

Submitted by: Christoph Mallon

Modify the FreeBSD USB kernel code so that it can be compiled directly
into the FreeBSD boot loader, typically for non-USB aware BIOSes, EFI systems
or embedded platforms. This is also useful for out of the system compilation
of the FreeBSD USB stack for various purposes. The USB kernel files can
now optionally include a global header file which should include all needed
definitions required to compile the FreeBSD USB stack. When the global USB
header file is included, no other USB header files will be included by
default.

Add new file containing the USB stack configuration for the
FreeBSD loader build.

Replace some __FBSDID()'s by /* $FreeBSD$ */ comments. Now all
USB files follow the same style.

Use cases:
- console in loader via USB
- loading kernel via USB

Discussed with: Hiroki Sato, hrs @ EuroBSDCon

- Add more USB templates for various USB device classes
- Add basic template support for USB 3.0
- Export definition of template sysctl numbers through usb_ioctl.h

MFC after: 7 days

Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by: bde

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

MFC r205030

- make the usb_temp_setup() and usb_temp_unsetup() functions public so that
other modules can generate USB descriptors.
- extend the vendor specific request function by one length pointer argument,
because not all descriptors store the length in the first byte. For example
HID descriptors.

Submitted by: Hans Petter Selasky

- make the usb_temp_setup() and usb_temp_unsetup() functions public so that
other modules can generate USB descriptors.
- extend the vendor specific request function by one length pointer argument,
because not all descriptors store the length in the first byte. For example
HID descriptors.

Submitted by: Hans Petter Selasky

- Make struct usb_xfer opaque so that drivers can not access the internals
- Reduce the number of headers needed for a usb driver, the common case is just usb.h and usbdi.h

s/usb2_/usb_|usbd_/ on all function names for the USB stack.

s/usb2_/usb_/ on all C structs for the USB stack.

Also use proper capitalisation of FreeBSD in other source files.

Approved by: thompsa

Move the new USB stack into its new home.