掌機 - Miyoo Mini Flip - 如何設定LCD亮度


$ echo 4 > /sys/class/gpio/export
$ echo 0 > /sys/class/pwm/pwmchip0/export
$ echo 800 > /sys/class/pwm/pwmchip0/pwm0/period
$ echo 70 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle
$ echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable

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