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simplified and improved vol_perc()

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Aaron Marcher 2017-04-20 22:30:04 +02:00
parent c288663ebd
commit d144c8de3d
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GPG Key ID: 74B048E5C2474F9A
1 changed files with 12 additions and 6 deletions
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slstatus.c
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@ -667,17 +667,23 @@ vol_perc(const char *card)
int v, afd, devmask;
char *vnames[] = SOUND_DEVICE_NAMES;
afd = open(card, O_RDONLY);
if (afd < 0) {
afd = open(card, O_RDONLY | O_NONBLOCK);
if (afd == -1) {
warn("Cannot open %s", card);
return smprintf(UNKNOWN_STR);
}
ioctl(afd, MIXER_READ(SOUND_MIXER_DEVMASK), &devmask);
if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
warn("Cannot get volume for %s", card);
close(afd);
return smprintf("%s", UNKNOWN_STR);
}
for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) {
if (devmask & (1 << i)) {
if (!strcmp("vol", vnames[i])) {
ioctl(afd, MIXER_READ(i), &v);
if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
if (ioctl(afd, MIXER_READ(i), &v) == -1) {
warn("vol_perc: ioctl");
close(afd);
return smprintf("%s", UNKNOWN_STR);
}
}
}