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Code Issues Releases Activity

Add support for SOUND_MIXER_INFO IOCTL, used by gstreamer.

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Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
MFC after:	2 weeks
This commit is contained in:
Alexander Motin 2014-07-29 08:31:10 +00:00
parent 343c95a24e
commit f0389e79cd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269228
1 changed files with 13 additions and 0 deletions
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13
sys/dev/sound/pcm/mixer.c
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@ -1221,6 +1221,15 @@ mixer_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
return (ret);
}
static void
mixer_mixerinfo(struct snd_mixer *m, mixer_info *mi)
{
bzero((void *)mi, sizeof(*mi));
strlcpy(mi->id, m->name, sizeof(mi->id));
strlcpy(mi->name, device_get_desc(m->dev), sizeof(mi->name));
mi->modify_counter = m->modify_counter;
}
/*
* XXX Make sure you can guarantee concurrency safety before calling this
* function, be it through Giant, PCM_*, etc !
@ -1279,6 +1288,10 @@ mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
*arg_i = SOUND_VERSION;
ret = 0;
goto done;
case SOUND_MIXER_INFO:
mixer_mixerinfo(m, (mixer_info *)arg);
ret = 0;
goto done;
}
if ((cmd & ~0xff) == MIXER_WRITE(0)) {
if (j == SOUND_MIXER_RECSRC)