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include hw description gathered from /dev/sndstat in sink/source description string

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@556 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-02-21 23:40:07 +00:00
parent 6169bd81aa
commit 5014db91d5
3 changed files with 90 additions and 3 deletions
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69
src/modules/oss-util.c
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@ -202,3 +202,72 @@ int pa_oss_set_volume(int fd, const pa_sample_spec *ss, const pa_cvolume *volume
pa_log_debug(__FILE__": Wrote mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), volume));
return 0;
}
int pa_oss_get_hw_description(const char *dev, char *name, size_t l) {
FILE *f;
const char *e = NULL;
int n, r = -1;
int b = 0;
if (strncmp(dev, "/dev/dsp", 8) == 0)
e = dev+8;
else if (strncmp(dev, "/dev/adsp", 9) == 0)
e = dev+9;
else
return -1;
if (*e == 0)
n = 0;
else if (*e >= '0' && *e <= '9' && *(e+1) == 0)
n = *e - '0';
else
return -1;
if (!(f = fopen("/dev/sndstat", "r")) &&
!(f = fopen("/proc/sndstat", "r")) &&
!(f = fopen("/proc/asound/oss/sndstat", "r"))) {
if (errno != ENOENT)
pa_log_warn(__FILE__": failed to open OSS sndstat device: %s\n", strerror(errno));
return -1;
}
while (!feof(f)) {
char line[64];
int device;
if (!fgets(line, sizeof(line), f))
break;
line[strcspn(line, "\r\n")] = 0;
if (!b) {
b = strcmp(line, "Audio devices:") == 0;
continue;
}
if (line[0] == 0)
break;
if (sscanf(line, "%i: ", &device) != 1)
continue;
if (device == n) {
char *k = strchr(line, ':');
assert(k);
k++;
k += strspn(k, " ");
if (pa_endswith(k, " (DUPLEX)"))
k[strlen(k)-9] = 0;
pa_strlcpy(name, k, l);
r = 0;
break;
}
}
fclose(f);
return r;
}