intr =mutex_lock_interruptible(&(aw->lock));if(intr)return-EINTR;/* Sanity check to make sure aw is connected, powered, etc */if(aw->present ==0|| aw->aw_dev ==NULL) { mutex_unlock(&(aw->lock));return-ENODEV; }do{unsignedlongthistime;char*obuf = aw->obuf; copy_size = (c...