Provided by: linux-doc-2.6.15_2.6.15-23.39_all
atapi_packet_task - Write CDB bytes to hardware
void atapi_packet_task (void * _data);
_data Port to which ATAPI device is attached.
When device has indicated its readiness to accept a CDB, this function
is called. Send the CDB. If DMA is to be performed, exit immediately.
Otherwise, we are in polling mode, so poll status under operation
succeeds or fails.
Kernel thread context (may sleep)