解决板卡插入usb摄像头上电，打不开摄像头的问题

liyujie

2025-08-29 87c7c0d90966d729ca3d39cbfca77a39a43960eb

解决板卡插入usb摄像头上电，打不开摄像头的问题

 android/device/softwinner/ceres-c3/init.device.rc
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@@ -59,6 +59,8 @@
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 #usb hub up
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     chmod 0777 /sys/class/leds/hubrst/brightness
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     write /sys/class/leds/hubrst/brightness 255
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+    chmod 0777 /sys/class/leds/usb_vbus/brightness
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+    write /sys/class/leds/usb_vbus/brightness 0
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 #GPIO 66 67 input
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     write /sys/class/gpio/export 66
 longan/device/config/chips/a133/configs/c3/kickpi-k5c.dts
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@@ -17,15 +17,15 @@
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 		standby_param = &standby_param;
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 	};
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-	reg_usb1_vbus: usb1-vbus {
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+ 	reg_usb1_vbus: usb1-vbus {
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 		compatible = "regulator-fixed";
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-		gpio = <&r_pio PL 8 1 2 0 1>;
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+		//gpio = <&r_pio PL 8 1 2 0 1>;
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 		regulator-name = "usb1-vbus";
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 		regulator-min-microvolt = <5000000>;
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 		regulator-max-microvolt = <5000000>;
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 		regulator-enable-ramp-delay = <1000>;
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 		enable-active-high;
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-	};
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+	}; 
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 	soc: soc@03000000 {
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..
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@@ -924,13 +924,13 @@
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 			status = "okay";
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 		};
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-		ehci1:ehci1-controller@0x05200000 {
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+ 		ehci1:ehci1-controller@0x05200000 {
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 			drvvbus-supply = <&reg_usb1_vbus>;
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 		};
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 		ohci1:ohci1-controller@0x05200400 {
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 			drvvbus-supply = <&reg_usb1_vbus>;
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-		};
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+		}; 
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 		sdc1: sdmmc@04021000 {
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                         bus-width = <4>;
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@@ -1340,6 +1340,12 @@
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 			pinctrl-names = "default";
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 			status = "okay";
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+			usb_vbus {
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+				abel = "usb_vbus";
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+				gpios = <&r_pio PL 8 1 2 0 1>;
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+				linux,default_trigger = "default-on";
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+			};
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+
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 			work-led {
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 				label = "work-led";
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 				gpios = <&r_pio PL 10 1 0 1 0>;