2 * Conky, a system monitor, based on torsmo
4 * This program is licensed under BSD license, read COPYING
14 #include <sys/ioctl.h>
16 #ifdef HAVE_LINUX_SOUNDCARD_H
17 #include <linux/soundcard.h>
19 #include <sys/soundcard.h>
20 #endif /* HAVE_LINUX_SOUNDCARD_H */
22 #define MIXER_DEV "/dev/mixer"
25 static const char *devs[] = SOUND_DEVICE_NAMES;
27 int mixer_init(const char *name)
31 if (name == 0 || name[0] == '\0')
36 mixer_fd = open(MIXER_DEV, O_RDONLY);
38 ERR("can't open %s: %s", MIXER_DEV,
44 for (i = 0; i < sizeof(devs) / sizeof(const char *); i++) {
45 if (strcasecmp(devs[i], name) == 0) {
53 static int mixer_get(int i)
58 if (ioctl(mixer_fd, MIXER_READ(i), &val) == -1) {
60 ERR("mixer ioctl: %s", strerror(errno));
69 int mixer_get_avg(int i)
72 return ((v >> 8) + (v & 0xFF)) / 2;
75 int mixer_get_left(int i)
77 return mixer_get(i) >> 8;
80 int mixer_get_right(int i)
82 return mixer_get(i) & 0xFF;