Radeon_FindVIPDevice
int Radeon_FindVIPDevice( accelerator_info *ai, uint32 device_id );
int channel = Radeon_FindVIPDevice( ai, THEATRE_ID );
fvd->channel = Radeon_FindVIPDevice( di, fvd->device_id );
int Radeon_FindVIPDevice( device_info *di, uint32 device_id );