1、make 文件添加自定义log信息
1)、$(info “abc$(NAME)”)
2、查看img属性信息
external/avb/avbtool info_image –image ~/source_code/mr1_o/out/dist/test/flash/boot.img
3、给 img 打标签
external/avb/avbtool add_hash_footer –image /home/lum/Downloads/mr1_userdebug_26/boot.img –partition_size 31457280 –partition_name boot –key external/avb/test/data/testkey_rsa4096.pem –algorithm SHA256_RSA4096
4、亮度调节快捷命令
1) #获取亮度是否为自动获取
adb shell settings get system screen_brightness_mode
1
2)#获取当前亮度值
adb shell settings get system screen_brightness
3) 更改亮度值(亮度值在0—255之间)
adb shell settings put system screen_brightness 150
4)通过写设备节点更改值
adb shell “echo 30 > /sys/devices/virtual/backlight/pwm-backlight.0/brightness” (亮度改变,但是进度条上值不变)