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READ API: read API ignores count and will always return 16 bit data. read API expects user to supply it with min of 16 bits data it returns CEC packet in following format bit 0-7: data bit 8: EOM bit 9: ACK WRITE API: write API ignores count and will always accept 32 bit data. write API expects user to supply it with min of 32 bits data it accepts CEC packet supllied in following format bit 0-7: data bit 8: EOM bit 12: Address mode, 0 = Direct, 1 = Broadcast bit 16: Generate Start bit, 0 = Disable, 1 = Enable bit 17: Retry frame, 0 = Disable, 1 = Enable Logical address is set to 4, as of now there is no mechanism to change this address from userspace. Driver is disabled by default in Kconfig Bug 200198493 Change-Id: Ia3835cec0bb717e63dabca5c5fcb1236847bf492 Reviewed-on: http://git-master/r/1164135 (cherry picked from commit 955ec819872e66c4732b38cd74c7ff3a302d95f2) Signed-off-by: Chun XU <chunx@nvidia.com>