qmk_firmware/keyboards/exclusive/e6v2/oe/oe.c

#include "oe.h"

void led_set_kb(uint8_t usb_led) {
	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
	DDRB |= (1<<6);
	if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
			// output low
			DDRB |= (1<<2);
			PORTB &= ~(1<<2);
		} else {
			// Hi-Z
			DDRB &= ~(1<<2);
			PORTB &= ~(1<<2);
		}
	// DDRB |= (1<<7);
	// DDRB |= (1<<1);
	// DDRB |= (1<<3);
	// DDRE |= (1<<6);
	if (usb_led == 0){
		PORTB |= (1<<6);
		// PORTB |= (1<<7);
		// PORTB |= (1<<1);
		// PORTB |= (1<<3);
		// PORTE |= (1<<6);
	}
	else{
		PORTB &= ~(1<<6);
		// PORTB &= ~(1<<7);
	}
    
	led_set_user(usb_led);
}