搜索键灯突然坏了或者有些灯亮有些不亮又或者时亮时不亮,下个软件把四大金刚的灯都关了?但是软件每次开机启动都会随机启动,占内存,于是在网上搜索到另一种修改系统文件来关灯的好方法,
关键代码,关灯
chmod 644 /sys/class/leds/button-backlight/brightness
echo 0 > /sys/class/leds/button-backlight/brightness
chmod 444 /sys/class/leds/button-backlight/brightness
开灯
chmod 644 /sys/class/leds/button-backlight/brightness
echo 255 > /sys/class/leds/button-backlight/brightness
其实就是改/sys/devices/platform/leds-cpcap-adb/leds/button-backlight/brightness
这下面还有个max_brightness,值是255,可惜一改就变回255,无解,brightness改小于255的值亮度不变,只能改0全关
开机脚本自动运行,测试有效丫的根本亮不起来,不用装软件了:
#!/system/bin/sh
chmod 644 /sys/class/leds/button-backlight/brightness
echo 0 > /sys/class/leds/button-backlight/brightness
chmod 444 /sys/class/leds/button-backlight/brightness
复制上面的代码,新建记事本,把代码粘贴进去,另存为install-recovery.sh
关键代码,关灯
chmod 644 /sys/class/leds/button-backlight/brightness
echo 0 > /sys/class/leds/button-backlight/brightness
chmod 444 /sys/class/leds/button-backlight/brightness
开灯
chmod 644 /sys/class/leds/button-backlight/brightness
echo 255 > /sys/class/leds/button-backlight/brightness
其实就是改/sys/devices/platform/leds-cpcap-adb/leds/button-backlight/brightness
这下面还有个max_brightness,值是255,可惜一改就变回255,无解,brightness改小于255的值亮度不变,只能改0全关
开机脚本自动运行,测试有效丫的根本亮不起来,不用装软件了:
#!/system/bin/sh
chmod 644 /sys/class/leds/button-backlight/brightness
echo 0 > /sys/class/leds/button-backlight/brightness
chmod 444 /sys/class/leds/button-backlight/brightness
复制上面的代码,新建记事本,把代码粘贴进去,另存为install-recovery.sh