ucNunberOfBytes  6583 drivers/gpu/drm/amd/include/atombios.h   UCHAR         ucNunberOfBytes;                                              //Indicates how many bytes SW needs to write to the external ASIC for one block, besides to "Start" and "Stop"
ucNunberOfBytes  5442 drivers/gpu/drm/radeon/atombios.h   UCHAR         ucNunberOfBytes;                                              //Indicates how many bytes SW needs to write to the external ASIC for one block, besides to "Start" and "Stop"