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	tAdd screen brightness sensor - spoon - dwm status utility (2f30 fork)
	git clone git://src.adamsgaard.dk/spoon
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	---
	commit 9a248ae02783160a7d78adc151d065f3276055c1
	parent ab74543a5e74287d11500dfbd7483dc88069e2b3
	Author: Lucas Gabriel Vuotto <[email protected]>
	Date: Sat, 14 Oct 2017 14:04:10 -0300

	Add screen brightness sensor

	Signed-off-by: Lucas Gabriel Vuotto <[email protected]>

	Diffstat:
	M Makefile \| 4 ++--
	A brightness.c \| 38 +++++++++++++++++++++++++++++…
	M spoon.c \| 1 +
	M stub.c \| 7 +++++++

	4 files changed, 48 insertions(+), 2 deletions(-)
	---
	diff --git a/Makefile b/Makefile
	t@@ -1,9 +1,9 @@
	VERSION = 0.5
	PREFIX = /usr/local
	SRC = spoon.c batt.c wifi.c cpu.c temp.c date.c load.c file.c key.c\
	- netspeed.c strlcpy.c strlcat.c stub.c mix.c xkblayout.c mpd.c
	+ netspeed.c strlcpy.c strlcat.c stub.c mix.c xkblayout.c mpd.c brightness…
	OBJ = spoon.o batt.o wifi.o cpu.o temp.o date.o load.o file.o key.o\
	- netspeed.o strlcpy.o strlcat.o stub.o
	+ netspeed.o strlcpy.o strlcat.o stub.o brightness.o
	BIN = spoon
	DISTFILES = $(SRC) types.h util.h config.def.h Makefile LICENSE configure

	diff --git a/brightness.c b/brightness.c
	t@@ -0,0 +1,38 @@
	+#include <err.h>
	+#include <stdio.h>
	+
	+#ifdef __OpenBSD__
	+#include <sys/ioctl.h>
	+#include <fcntl.h>
	+#include <time.h>
	+#include <unistd.h>
	+#include <dev/wscons/wsconsio.h>
	+
	+int
	+brightnessread(void arg, char buf, size_t len)
	+{
	+ struct wsdisplay_param dpyp;
	+ int fd;
	+
	+ if ((fd = open("/dev/ttyC0", O_RDONLY)) == -1) {
	+ warn("couldn't open /dev/ttyC0");
	+ return -1;
	+ }
	+ dpyp.param = WSDISPLAYIO_PARAM_BRIGHTNESS;
	+ if (ioctl(fd, WSDISPLAYIO_GETPARAM, &dpyp) == -1) {
	+ warn("WSDISPLAYIO_PARAM_BRIGHTNESS ioctl");
	+ return -1;
	+ }
	+ close(fd);
	+ snprintf(buf, len, "%3d%%",
	+ 100 * (dpyp.curval - dpyp.min) / (dpyp.max - dpyp.min));
	+
	+ return 0;
	+}
	+#elif __linux__
	+int
	+brightnessread(void arg, char buf, size_t len)
	+{
	+ return -1;
	+}
	+#endif
	diff --git a/spoon.c b/spoon.c
	t@@ -21,6 +21,7 @@ int xkblayoutread(void , char , size_t);
	int fileread(void , char , size_t);
	int keyread(void , char , size_t);
	int netspeedread(void , char , size_t);
	+int brightnessread(void , char , size_t);

	struct ent {
	char *fmt;
	diff --git a/stub.c b/stub.c
	t@@ -69,3 +69,10 @@ netspeedread(void arg, char buf, size_t len)
	{
	return -1;
	}
	+
	+#pragma weak brightnessread
	+int
	+brightnessread(void arg, char buf, size_t len)
	+{
	+ return -1;
	+}