asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

sound: seq_midi: do not send MIDI reset when closing

Browse source 
Sending a MIDI reset message when closing a port is wrong because we
only want to shut the device up, not to reset all settings.
Furthermore, many devices ignore this message.

Fortunately, the RawMIDI layer already shuts the device up, so we can
ignore this matter here.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2009-07-13 13:50:17 +02:00 committed by Takashi Iwai
parent f907ed94f9
commit b86c87288c
1 changed files with 0 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
sound/core/seq/seq_midi.c
View file

@ -249,12 +249,9 @@ static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info
static int midisynth_unuse(void *private_data, struct snd_seq_port_subscribe *info)
{
struct seq_midisynth *msynth = private_data;
unsigned char buf = 0xff; /* MIDI reset */
if (snd_BUG_ON(!msynth->output_rfile.output))
return -EINVAL;
/* sending single MIDI reset message to shut the device up */
snd_rawmidi_kernel_write(msynth->output_rfile.output, &buf, 1);
snd_rawmidi_drain_output(msynth->output_rfile.output);
return snd_rawmidi_kernel_release(&msynth->output_rfile);
}