mirror of https://github.com/54shady/kernel_drivers_examples.git synced 2026-01-13 16:02:37 +00:00

Files

zeroway f18980425c Get task_struct according to the PID

Change-Id: I2dbb0dca24465b8684e1a0a88b59379926f751ab

2021-06-24 07:18:35 +00:00

.gitignore

2021-06-08 09:23:31 +00:00

kset_skeleton.c

kset example

2017-11-12 16:15:17 +00:00

Makefile

2021-06-24 07:18:35 +00:00

pid2task.c

2021-06-24 07:18:35 +00:00

README.md

2017-10-01 00:10:57 +00:00

seq_test2.c

2021-06-10 05:47:18 +00:00

seq_test.c

2021-06-08 09:23:31 +00:00

skeleton_ss.c

2017-10-01 00:10:57 +00:00

skeleton_ss.dtsi

2017-10-01 00:10:57 +00:00

skeleton_ss.h

2017-10-01 00:10:57 +00:00

Usage

把dtsi文件包含到所使用的dts里

#include "skeleton_ss.dtsi"

debug

拉高pin_a_name(GPIO1_B2)

echo 0 1 > /sys/devices/platform/skeleton_gpios/egpios_debug

拉低pin_a_name(GPIO1_B2)

echo 0 0 > /sys/devices/platform/skeleton_gpios/egpios_debug

查看相应管脚状态

cat /sys/devices/platform/skeleton_gpios/egpios_debug
cat /sys/kernel/debug/gpio | grep pin_