Fix volume scroll wheel

hyperx_elite2.c

@@ -11,8 +11,7 @@ static bool sending = false;
 static absolute_time_t lastTime;
 static bool backlight = false;
 
-static const unsigned int SKIP_INDICES[] = { 23, 29, 41, 47, 70, 71, 76, 87, 88, 93, 99, 100, 102, 108, 113, 123 };
-// added play/pause (123)
+static const unsigned int SKIP_INDICES[] = { 23, 29, 41, 47, 70, 71, 76, 87, 88, 93, 99, 100, 102, 108, 113 };
 
 static unsigned char buf[BUF_SIZE];
 static uint8_t buf_idx=0;
@@ -100,8 +99,8 @@ void send_color(uint8_t dev_addr, uint8_t instance, uint8_t report_id, uint8_t r
 			} else {
 				// start by sending color init byte for the current key
 				buf[buf_idx]		= 0x81;
-				// turn rewind and fast forward keys to white
-				if(color_idx==105 || color_idx== 108) {
+				// turn rewind, play, and fast forward keys to white
+				if(color_idx==105 || color_idx==108 || color_idx==109) {
 					buf[buf_idx + 1]	= 0x20;
 					buf[buf_idx + 2]	= 0x20;
 					buf[buf_idx + 3]	= 0x20;
@@ -185,12 +184,13 @@ void startADC() {
 // process media key presses and prepare HID Consumer Control byte
 void send_media(uint8_t const* report, uint16_t len) {
 	(void) len;
+	if ( report[0]==0x05 ) {
 		switch(report[2]) {
-		case 0xB0: // set next button to vol up
-			mediabit = 4;
+			case 0xB0: // next
+				mediabit = 0;
 				break;
-		case 0xB1: // set prev button to vol down
-			mediabit = 5;
+			case 0xB1: // prev
+				mediabit = 1;
 				break;
 			case 0xB3: // play/pause
 				mediabit = 2;
@@ -211,6 +211,23 @@ void send_media(uint8_t const* report, uint16_t len) {
 		}
 		// set flag to send media keys during the next sending round
 		sendmedia = true;
+	} else if ( report[0]==0x03 ) {
+		switch(report[1]) {
+			case 0xE9: // vol up
+				SET_KEYBIT(mediakeys, 4);
+				break;
+			case 0xEA: // vol down
+				SET_KEYBIT(mediakeys, 5);
+				break;
+			case 0x00: // none
+				CLEAR_KEYBIT(mediakeys, 4);
+				CLEAR_KEYBIT(mediakeys, 5);
+				break;
+			default:
+				return;
+		}
+		sendmedia = true;
+	}
 }
 
 // process new HID reports from the keyboard and set them up to forward to host

hyperx_elite2.h

@@ -5,7 +5,7 @@ enum
 {
 	HYPERX_KEYBOARD_VID		= 0x0951,
 	HYPERX_ELITE2_PID		= 0x1711,
-	NUM_KEYS				= 128,
+	NUM_KEYS				= 129,
 	BUF_SIZE				= 64,
 	NUM_PACKETS				= 10,
 	NKRO_BUF_SIZE			= 15,

main_device.c

@@ -89,6 +89,5 @@ uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_t
 	(void) buffer;
 	(void) reqlen;
 
-
 	return 0;
 }

main_host.c

@@ -24,6 +24,7 @@ void core1_main() {
 	pio_usb_configuration_t pio_cfg = PIO_USB_DEFAULT_CONFIG;
 	pio_cfg.alarm_pool = (void*) alarm_pool_create(2,1);
 	tuh_configure(1, TUH_CFGID_RPI_PIO_USB_CONFIGURATION, &pio_cfg);
+	tuh_hid_set_default_protocol(HID_PROTOCOL_REPORT);
 	tuh_init(1);