4a8e519902
Currently, it is assumed that all audio data CPorts registered on APB1 are used for transmitting audio data. That may not always be true like when a microphone is connected but no speakers. Also, the current special protocol lacks a way to tell APB1 whether the CPort being registered is for transmitting, receiving, or both. Fix by adding a 'direction' field to the register and unregister CPort requests and define bits indicating which direction (or both) audio data will go on that CPort. Signed-off-by: Mark Greer <mgreer@animalcreek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>