v1:
放入內核 drivers/char
修改 drivers/char/Makefile,添加:
obj-y += leds_4412.o
重新編譯內核
v2:
把 leds_4412.c 放到drivers/leds
修改 drivers/leds/Makefile:
obj-y += leds_4412.o
重新配置內核
make menuconfig
CONFIG_LEDS_CLASS
CONFIG_LEDS_TRIGGERS
CONFIG_LEDS_TRIGGER_TIMER
-> Device Drivers
-> LED Support
[*] LED Class Support
[*] LED Trigger support
<*> LED Timer Trigger
重新編譯內核
root@android-virtual-machine:/work/linux-3.0.86/drivers/char# vi leds_4412.c
root@android-virtual-machine:/work/linux-3.0.86/drivers/char# vi Makefile
root@android-virtual-machine:/work/linux-3.0.86/drivers/char# vi Makefile
root@android-virtual-machine:/work/linux-3.0.86# make zImage