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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>
15 lines
309 B
Makefile
15 lines
309 B
Makefile
CC = $(CROSS_COMPILE)gcc
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CFLAGS += -O2 -Wall -g -D_GNU_SOURCE
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all: lsgpio gpio-hammer gpio-event-mon
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lsgpio: lsgpio.o gpio-utils.o
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gpio-hammer: gpio-hammer.o gpio-utils.o
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gpio-event-mon: gpio-event-mon.o gpio-utils.o
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%.o: %.c gpio-utils.h
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.PHONY: clean
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clean:
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rm -f *.o lsgpio gpio-hammer gpio-event-mon
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