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| author | Linus Walleij <linus.walleij@linaro.org> | 2016-06-02 11:38:33 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-06-15 09:29:29 +0200 |
| commit | 97f69747d8b11c76df321894344beeae6bafc301 (patch) | |
| tree | 5058310cc8675829b3cfb28561926b0c717244f1 /tools/gpio/Makefile | |
| parent | 61f922db72216b00386581c851db9c9095961522 (diff) | |
| download | linux-97f69747d8b11c76df321894344beeae6bafc301.tar.bz2 | |
tools/gpio: add the gpio-event-mon tool
The gpio-event-mon is used from userspace as an example of how
to monitor GPIO line events. It will latch on to a certain
GPIO line on a certain gpiochip and print timestamped events
as they arrive.
Example output:
$ gpio-event-mon -n gpiochip2 -o 0 -r -f
Monitoring line 0 on gpiochip2
Initial line value: 1
GPIO EVENT 946685798487609863: falling edge
GPIO EVENT 946685798732482910: rising edge
GPIO EVENT 946685799115997314: falling edge
GPIO EVENT 946685799381469726: rising edge
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'tools/gpio/Makefile')
| -rw-r--r-- | tools/gpio/Makefile | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile index aea23949054e..619314ff9bd6 100644 --- a/tools/gpio/Makefile +++ b/tools/gpio/Makefile @@ -1,13 +1,14 @@ CC = $(CROSS_COMPILE)gcc CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -all: lsgpio gpio-hammer +all: lsgpio gpio-hammer gpio-event-mon lsgpio: lsgpio.o gpio-utils.o gpio-hammer: gpio-hammer.o gpio-utils.o +gpio-event-mon: gpio-event-mon.o gpio-utils.o %.o: %.c gpio-utils.h .PHONY: clean clean: - rm -f *.o lsgpio gpio-hammer + rm -f *.o lsgpio gpio-hammer gpio-event-mon |