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Added functions:

Browse source 
snd_ctl_rawmidi_prefer_subdevice
	snd_rawmidi_open_subdevice
Fixed functions:
	snd_pcm_hw_open - fixed prefer subdevice code
This commit is contained in:
Jaroslav Kysela 2000-10-30 12:15:18 +00:00
parent 8a625fd63b
commit 0e561770c6
10 changed files with 93 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/pcm/pcm_hw.c
View file

@ -579,15 +579,18 @@ int snd_pcm_hw_open_subdevice(snd_pcm_t **pcmp, int card, int device, int subdev
default:
assert(0);
}
ret = snd_ctl_pcm_prefer_subdevice(ctl, subdevice);
snd_ctl_close(ctl);
if (ret < 0)
return ret;
sprintf(filename, filefmt, card, device);
__again:
if (attempt++ > 3)
if (attempt++ > 3) {
snd_ctl_close(ctl);
return -EBUSY;
}
ret = snd_ctl_pcm_prefer_subdevice(ctl, subdevice);
if (ret < 0) {
snd_ctl_close(ctl);
return ret;
}
fmode = O_RDWR;
if (mode & SND_PCM_NONBLOCK)
fmode |= O_NONBLOCK;
@ -595,6 +598,7 @@ int snd_pcm_hw_open_subdevice(snd_pcm_t **pcmp, int card, int device, int subdev
fmode |= O_ASYNC;
if ((fd = open(filename, fmode)) < 0) {
SYSERR("open %s failed", filename);
snd_ctl_close(ctl);
return -errno;
}
if (ioctl(fd, SND_PCM_IOCTL_PVERSION, &ver) < 0) {
@ -646,11 +650,13 @@ int snd_pcm_hw_open_subdevice(snd_pcm_t **pcmp, int card, int device, int subdev
ret = snd_pcm_hw_mmap_status(pcm);
if (ret < 0) {
snd_pcm_close(pcm);
snd_ctl_close(ctl);
return ret;
}
ret = snd_pcm_hw_mmap_control(pcm);
if (ret < 0) {
snd_pcm_close(pcm);
snd_ctl_close(ctl);
return ret;
}
return 0;
@ -661,6 +667,7 @@ int snd_pcm_hw_open_subdevice(snd_pcm_t **pcmp, int card, int device, int subdev
if (pcm)
free(pcm);
close(fd);
snd_ctl_close(ctl);
return ret;
}