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This adds USB support to Set and Get the Device Configuration.
These control transfers are standard device requests that need to
be added in order to behave properly for USB suspend/resume (and
in general). Before this CL, the Get command always failed and
the Set command had no effect internally. With this CL it works.
Note that this particular change only supports ONE configuration
for the Cr50. If/when we add additional configuration
descriptors, we'll need to update it again.
BUG=chrome-os-partner:50721
BRANCH=none
TEST=make buildall; manual tests on Cr50
This CL includes a test program. Connect the Cr50 to the build
host, and use that program to read and change the configuration.
cd test/usb_test
make
./device_configuration
./device_configuration 0
./device_configuration 1
./device_configuration 2
You may need to use sudo if your device permissions aren't sufficient.
Change-Id: Id65e70265f0760b1b374005dfcddc88e66a933f6
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/335878
Reviewed-by: Scott Collyer <scollyer@chromium.org>
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