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f13f45bfc9
The `i2cdetect` tool will scan certain slave addresses with a zero byte read / write. Reply to such requests with the ACK status of the slave device. BUG=chrome-os-partner:53324 BRANCH=None TEST=Verify `i2cdetect -y -a 9` on kevin yields the ACK status of each slave address. Change-Id: If080cc9f1b7dfefb0025fef448c5b177a2a50137 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/350102 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Mulin Chao <mlchao@nuvoton.com> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Mulin Chao <mlchao@nuvoton.com>