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This is a simple kernel module and Makefile for building it out of tree. This module just uses the existing kernel usb serial driver and probes for the Google VID/Class/SubClass/Protocol that identifies a valid simple serial interface. This code should be rolled into the existing kernel driver at: drivers/usb/serial/usb-serial-simple.c While that happens, this module is still useful to developers. Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=cd extra/usb_serial; make; sudo insmod raiden.ko Connect the discovery-stm32f072 over USB and see that its console is discovered and works. Change-Id: I83661b816643c43b3e2dc9fdc825bc3a796af2f4 Reviewed-on: https://chromium-review.googlesource.com/225923 Reviewed-by: Olof Johansson <olofj@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Anton Staaf <robotboy@chromium.org> Commit-Queue: Anton Staaf <robotboy@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit