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d5c08763e1
The default USB packet has a maximum size of 64 bytes, however, we need to support some USB over I2C write transaction that exceed this default. To support so with protocol backwards-compatible in mind, we enable a config option CONFIG_USB_I2C_MAX_WRITE_COUNT that will enlarge the USB RX queue. BRANCH=none BUG=b:35587174 TEST=Complete presubmit test. TEST=Manually update elan trackpad firmware with interrupt disabled. Change-Id: Ia8983b036b7297f7ca673459ae34b7e5ecd2ee01 Reviewed-on: https://chromium-review.googlesource.com/513642 Commit-Ready: Chun-ta Lin <itspeter@chromium.org> Tested-by: Chun-ta Lin <itspeter@chromium.org> Reviewed-by: Chun-ta Lin <itspeter@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly