src/sys/dev/ow, branch upstream/11.1.0

Don't repeat the the word 'the'

2016-05-17T12:52:31+00:00

(one manual change to fix grammar)

Confirmed With: db
Approved by: secteam (not really, but this is a comment typo fix)

dev/ow: Tag an unreachable switch default.

2016-05-16T20:04:38+00:00

Coverity reports an uninitialized "dir" in case the switch defaults
without hitting any case. Respect the original intent and quell the
false positive with the relatively new __unreachable() builtin.

CID:	1331566

Cleanup unnecessary semicolons from the kernel.

2016-04-10T23:07:00+00:00

Found with devel/coccinelle.

Simply to appease gcc's warnings.

2015-08-28T02:29:31+00:00

New 1-Wire bus implementation. 1-Wire controller is abstracted, though

2015-08-27T23:33:38+00:00

only gpiobus configured via FDT is supported. Bus enumeration is
supported. Devices are created for each device found. 1-Wire
temperature controllers are supported, but other drivers could be
written. Temperatures are polled and reported via a sysctl.  Errors
are reported via sysctl counters. Mis-wired bus detection is included
for more trouble shooting. See ow(4), owc(4) and ow_temp(4) for
details of what's supported and known issues.

This has been tested on Raspberry Pi-B, Pi2 and Beagle Bone Black
with up to 7 devices.

Differential Revision: https://reviews.freebsd.org/D2956
Relnotes: yes
MFC after: 2 weeks
Reviewed by: loos@ (with many insightful comments)