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	tEquivalent of mixerctl outputs.master in percentage - spoon - dwm status utili…
	git clone git://src.adamsgaard.dk/spoon
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	---
	commit ff5d7123662884975ea6f343746dd6206f1153b1
	parent f25c8bd0592be9c238e3b7b70176d20367b9f60a
	Author: lostd <[email protected]>
	Date: Tue, 24 May 2016 21:36:23 +0100

	Equivalent of mixerctl outputs.master in percentage

	Diffstat:
	M spoon.c \| 65 +++++++++++++++++++++++++++++…

	1 file changed, 65 insertions(+), 0 deletions(-)
	---
	diff --git a/spoon.c b/spoon.c
	t@@ -19,6 +19,7 @@ int mpdread(char *buf, size_t len);
	int cpuread(char *buf, size_t len);
	int tempread(char *buf, size_t len);
	int battread(char *buf, size_t len);
	+int mixread(char *buf, size_t len);
	int wifiread(char *buf, size_t len);
	int dateread(char *buf, size_t len);
	int xkblayoutread(char *buf, size_t len);
	t@@ -29,6 +30,7 @@ struct ent {
	} ents[] = {
	/* reorder this if you want */
	{ .fmt = "[%s] ", .read = mpdread },
	+ { .fmt = "[%s] ", .read = mixread },
	{ .fmt = "[%s] ", .read = xkblayoutread },
	{ .fmt = "[%s] ", .read = cpuread },
	{ .fmt = "[%s] ", .read = tempread },
	t@@ -83,6 +85,7 @@ out:
	#include <sys/sysctl.h>
	#include <sys/sensors.h>
	#include <sys/ioctl.h>
	+#include <sys/audioio.h>

	#include <net/if.h>
	#include <net/if_media.h>
	t@@ -130,6 +133,62 @@ tempread(char *buf, size_t len)
	}

	int
	+mixread(char *buf, size_t len)
	+{
	+ mixer_devinfo_t dinfo;
	+ mixer_ctrl_t mctl;
	+ int fd, master, ret = 0, i = -1;
	+
	+ fd = open("/dev/mixer", O_RDONLY);
	+ if (fd == -1) {
	+ warn("open %s", "/dev/mixer");
	+ return -1;
	+ }
	+ /* outputs */
	+ for (dinfo.index = 0; ; dinfo.index++) {
	+ ret = ioctl(fd, AUDIO_MIXER_DEVINFO, &dinfo);
	+ if (ret == -1) {
	+ warn("AUDIO_MIXER_DEVINFO %s", "/dev/mixer");
	+ close(fd);
	+ return -1;
	+ }
	+ if (dinfo.type == AUDIO_MIXER_CLASS &&
	+ strcmp(dinfo.label.name, AudioCoutputs) == 0) {
	+ i = dinfo.index;
	+ break;
	+ }
	+ }
	+ if (i == -1) {
	+ warnx("no outputs mixer class: %s", "/dev/mixer");
	+ goto out;
	+ }
	+ /* outputs.master */
	+ for (; ; dinfo.index++) {
	+ ret = ioctl(fd, AUDIO_MIXER_DEVINFO, &dinfo);
	+ if (ret == -1) {
	+ warn("AUDIO_MIXER_DEVINFO %s", "/dev/mixer");
	+ goto out;
	+ }
	+ if (dinfo.type == AUDIO_MIXER_VALUE &&
	+ dinfo.prev == AUDIO_MIXER_LAST &&
	+ dinfo.mixer_class == i &&
	+ strcmp(dinfo.label.name, AudioNmaster) == 0)
	+ break;
	+ }
	+ mctl.dev = dinfo.index;
	+ ret = ioctl(fd, AUDIO_MIXER_READ, &mctl);
	+ if (ret == -1) {
	+ warn("AUDIO_MIXER_READ %s", "/dev/mixer");
	+ goto out;
	+ }
	+ master = mctl.un.value.level[0] * 100 / 255;
	+ snprintf(buf, len, "%d%%", master);
	+out:
	+ close(fd);
	+ return ret;
	+}
	+
	+int
	battread(char *buf, size_t len)
	{
	struct apm_power_info info;
	t@@ -256,6 +315,12 @@ tempread(char *buf, size_t len)
	}

	int
	+mixread(char *buf, size_t len)
	+{
	+ return -1;
	+}
	+
	+int
	battread(char *buf, size_t len)
	{
	return -1;