SUBSTREAM_FLAG_DATA_EP_STARTED 218 sound/usb/pcm.c if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) { SUBSTREAM_FLAG_DATA_EP_STARTED 226 sound/usb/pcm.c clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags); SUBSTREAM_FLAG_DATA_EP_STARTED 268 sound/usb/pcm.c if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags))