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sound: rawmidi: disable active-sensing-on-close by default

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commit 2d4b842014dc76a81abced47ef27177eedb9deba upstream.

Sending an Active Sensing message when closing a port can interfere with
the following data if the port is reopened and a note-on is sent before
the device's timeout has elapsed.  Therefore, it is better to disable
this setting by default.

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 13:52:46 +02:00
committed by Greg Kroah-Hartman
parent ea4cf64263
commit e38dcb2b06
2 changed files with 2 additions and 1 deletions
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2
sound/core/rawmidi.c
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@@ -274,7 +274,7 @@ static int open_substream(struct snd_rawmidi *rmidi,
return err;
substream->opened = 1;
if (substream->use_count++ == 0)
substream->active_sensing = 1;
substream->active_sensing = 0;
if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
substream->append = 1;
rmidi->streams[substream->stream].substream_opened++;

1
sound/core/seq/seq_midi.c
View File

@@ -236,6 +236,7 @@ static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info
memset(&params, 0, sizeof(params));
params.avail_min = 1;
params.buffer_size = output_buffer_size;
params.no_active_sensing = 1;
if ((err = snd_rawmidi_output_params(msynth->output_rfile.output, &params)) < 0) {
snd_rawmidi_kernel_release(&msynth->output_rfile);
return err;