MFC r317463:

Add information about device nodes to man pages for USB serial drivers.

MFC r318016:

Fix mistake introduced to uart(4) man page in r317463.

MFC r318017:

Fix device paths for USB serial adapters: the formatting strings
contain "%u", differently from eg uart(4) which uses "%r".

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

use .Mt to mark up email addresses consistently (final part)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

Support multiple interface devices. The driver had previously hardcoded
support for only the first port, but the CP2105 can have multiple ports.
Although this allowed the first port to mostly work on multi port devices,
there could be issues with this arrangement.

Update the man page to reflect support for both ports and the CP2105.

Many thanks to Silicon Labs (www.silabs.com) for providing a CP2105-EK
dev board for testing.

MFC after: 2 weeks

Add support for more devices to uslcom(4). This commit syncronises the
list of supported devices with the union of:

NetBSD src/sys/dev/usb/uslsa.c 1.18
OpenBSD src/sys/dev/usb/uslcom.c 1.24
Linux source/drivers/usb/serial/cp210x.c HEAD

Remove duplicate JABLOTRON PC60B entry.

Note that some of the devices added here are multi-port devices. The
uslcom(4) driver currently only supports the first port on such devices.

Update the man page to reflect the full list of supported devices.
Remove two caveats from the CAVEATS section, as both listed caveats no
longer apply. Add a caveat about multi-port devices.

MFC after: 2 weeks

General mdoc(7) and typo fixes.

PR: 167776
Submitted by: Nobuyuki Koganemaru (kogane!jp.freebsd.org)
MFC after: 3 days

- Add missing usb and ucom devices

PR: usb/160301
Submitted by: Garrett Cooper <gcooper@ixsystems.com>
Reviewed by: hselasky
Approved by: hselasky, rwatson (mentor)
MFC after: 3 Days

- Remove superfluous ucom device lines in USB manual pages.

Submitted by: Carl @ telus.net
MFC after: 14 days
Approved by: thompsa (mentor)

mdoc changes to make this manpage consistent with our other section 4 manpages.

Oops, I accidently concatenated uslcom.[c4] multiple times before the
commit :-/ Quickly fix before things get broken...

Pointyhat to: me

Import uslcom(4) from OpenBSD - this is a driver for Silicon Laboratories
CP2101/CP2102 based USB serial adapters.

Reviewed by: imp, emaste
Obtained from: OpenBSD
MFC after: 2 weeks