ectool: Don't acquire lock when dev interface is used

The /dev/cros_ec interface has a built-in mutex, thus we do not
need to use /run/lock to arbitrate access since we can assume other
tools (mosys, flashrom) also use the dev interface.

$ generate_logs
...
feedback/cbi_info
...
$ cat feedback/cbi_info
[0]
As integer: 1 (0x1)
As binary: 01 02
[1]
As integer: 3 (0x3)
As binary: 03
[2]
As integer: 103 (0x67)
As binary: 67 3a

Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

BUG=chromium:849399
BRANCH=none
TEST=Verify 'ectool version' runs on Nami. Verify lock is acquired
when '--interface=lpc' is specified. Verify debugd can run cbi_info.

Change-Id: Id94317472917a974218bb137bda11fe5618a4b88
Reviewed-on: https://chromium-review.googlesource.com/1393729
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
(cherry picked from commit aed008f87c3c880edecf7608ab24eaa4bee1bc46)
Reviewed-on: https://chromium-review.googlesource.com/c/1398342
Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>

0 files changed, 0 insertions, 0 deletions