增加sysfs接口

hc

2023-08-30 862c27fc9920c83318c784bfdadf43a65df1ec8f

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#!/bin/sh
 
# remove drm-logo
echo 1 > /sys/devices/platform/display-subsystem/graphics/fb0/blank
# create a always connected HDMI
echo on > /sys/class/drm/card0-HDMI-A-1/status