snd_uart16550_substreams  874 sound/drivers/serial-u16550.c 	snd_uart16550_substreams(&rrawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]);
snd_uart16550_substreams  875 sound/drivers/serial-u16550.c 	snd_uart16550_substreams(&rrawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);