LED4 (reference) in projects: linux-4.4.14

479 				currentleds &= ~(LED4|LED5|LED6|LED7);  in led_work_func()
481 				currentleds |= (LED4|LED5|LED6|LED7);  in led_work_func()

86 				label = "LED4";

118 			label = "LED4";

103 			label = "LED4";

/linux-4.4.14/arch/parisc/include/asm/
D	led.h	`7 #define LED4 0x10 macro`
/linux-4.4.14/drivers/parisc/
D	led.c	`479 currentleds &= ~(LED4\|LED5\|LED6\|LED7); in led_work_func() 481 currentleds \|= (LED4\|LED5\|LED6\|LED7); in led_work_func()`
/linux-4.4.14/arch/arc/boot/dts/
D	abilis_tb100_dvk.dts	`86 label = "LED4";`
D	abilis_tb101_dvk.dts	`86 label = "LED4";`
/linux-4.4.14/arch/arm/boot/dts/
D	s3c6410-mini6410.dts	`157 label = "LED4";`
D	r8a7740-armadillo800eva.dts	`118 label = "LED4";`
D	sun7i-a20-pcduino3-nano.dts	`72 /* Marked "LED4" on the PCB. */`
D	sh73a0-kzm9g.dts	`103 label = "LED4";`