RK3288_Android7.1接eDP屏休眠之后led状态灯没有亮红色
16lz
2021-01-25
主要是/sys/class/leds/standby/brightness和/sys/class/backlight/backlight/brightness这两个节点的选择操作。
--- a/services/core/java/com/android/server/power/PowerManagerService.java+++ b/services/core/java/com/android/server/power/PowerManagerService.java@@ -1257,7 +1257,8 @@ public final class PowerManagerService extends SystemService Slog.i(TAG, "Waking up from dozing (uid " + reasonUid +")..."); break; }- if("LVDS".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A")))+ if("LVDS".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A")) ||+ "eDP".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A"))) writeSysfs("/sys/class/leds/standby/brightness","255");//added for ctl led else writeSysfs("/sys/class/backlight/backlight/brightness","255");@@ -1344,7 +1345,8 @@ public final class PowerManagerService extends SystemService break; }- if("LVDS".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A")))+ if("LVDS".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A")) ||+ "eDP".equals(SystemProperties.get("sys.hwc.device.primary", "HDMI-A"))) writeSysfs("/sys/class/leds/standby/brightness","0");//addedfor ctl led else writeSysfs("/sys/class/backlight/backlight/brightness","0");编译更新：
caizd@ubt144c:/work/czd/rk3288_7.1_mid$ mmm frameworks/base/services/
然后替换out/target/product/rk3399_mid/system/framework/services.jar到以下jar包即可：
rk3288:/ # ls -l system/framework/services.jar
-rw-r–r-- 1 root root 3160502 2019-10-23 03:56 system/framework/services.jar
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