From c1a838ab5f5da00888ac8df228b333b252ab7b52 Mon Sep 17 00:00:00 2001
From: f1andrew <andriyf1@ukr.net>
Date: Mon, 17 Oct 2022 11:00:35 +0300
Subject: [PATCH] controlling volume with consumer keys to support ios

---
 arduino/arduino_nRF52840/arduino_nRF52840.ino | 22 ++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arduino/arduino_nRF52840/arduino_nRF52840.ino b/arduino/arduino_nRF52840/arduino_nRF52840.ino
index eaf6535..641ed84 100644
--- a/arduino/arduino_nRF52840/arduino_nRF52840.ino
+++ b/arduino/arduino_nRF52840/arduino_nRF52840.ino
@@ -593,7 +593,27 @@ void sendBLEKeyboardCode(char *myLine)
     keys[i] = strtoul(p, NULL, 16);
     p = strtok(NULL, "-");
   }
-  ret = blehid.keyboardReport(target_ble_conn, keys[0], &keys[2]);
+  switch(keys[2]) {
+    // MUTE
+    case 0x7F:
+      ret = blehid.consumerKeyPress(target_ble_conn, 0xE2);
+      blehid.consumerKeyRelease(target_ble_conn);
+      break;
+    // VOLUME UP
+    case 0x80:
+      ret = blehid.consumerKeyPress(target_ble_conn, 0xE9);
+      blehid.consumerKeyRelease(target_ble_conn);
+      break;
+    // VOLUME DOWN
+    case 0x81:
+      ret = blehid.consumerKeyPress(target_ble_conn, 0xEA);
+      blehid.consumerKeyRelease(target_ble_conn);
+      break;
+    // Regular keycodes
+    default:
+      ret = blehid.keyboardReport(target_ble_conn, keys[0], &keys[2]);
+  }
+  
   if ((int)ret != 1)
   {
     snprintf(buff, sizeof(buff), "ERROR %d\n", (int)ret);