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241cc62685
This allows sending host commands to the PD chip through the EC. The --interface option allows forcing a particular host interface. This is necessary at present because the crosec device driver doesn't support host protocol v3 so only has 8-bit command numbers. BUG=chrome-os-partner:30079 BRANCH=none TEST=from EC console, ectool version -> prints EC version ectool --interface=lpc --dev=0 version -> prints EC version ectool --interface=lpc --dev=1 version -> prints PD version ectool --interface=lpc --dev=2 version -> prints error ectool --interface=i2c version -> can't find EC ectool --interface=dev version -> prints EC version Change-Id: I9dd10578dac77e3e104d19e2f37759814eec6ca2 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/207948
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit