tree efa141f813b79ba91f100c884f12e101d50236a1
parent 12a26d27e75d4cb96291f9fa4bea44cf7900bf58
author Xo Wang <xow@google.com> 1480703175 -0800
committer Patrick Williams <patrick@stwcx.xyz> 1480969753 +0000

pytools/gpioutil: Don't set direction if already set

Writing "out" to GPIO direction will actually clear the output value.
This makes it impossible to read the value of outputs with gpioutil
since it always sets value to 0 before reading it.

Fix: don't write direction if the direction already matches that
requested.

Change-Id: I2116e6c7f5800239dd89c4f47fe7fd087b3a87cd
Signed-off-by: Xo Wang <xow@google.com>