From b2dc69e347ba22c3a97d7ab9625095d508c607e5 Mon Sep 17 00:00:00 2001
From: Akemi <der.richter@gmx.de>
Date: Mon, 9 Apr 2018 18:48:36 +0200
Subject: HIDRemote: fix volume buttons on macOS 10.13

this is a backport of line 1039 to 1046 from
https://github.com/iospirit/HIDRemote/commit/33a32ab6136feb8b8220e99ec52c7504c3a82242#diff-8a4d13f0849b3beffa4267954ca28517R1039

Fixes #5721
---
 osdep/ar/HIDRemote.m | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/osdep/ar/HIDRemote.m b/osdep/ar/HIDRemote.m
index 47e35f46fd..8e6c913d46 100644
--- a/osdep/ar/HIDRemote.m
+++ b/osdep/ar/HIDRemote.m
@@ -940,6 +940,14 @@ static HIDRemote *sHIDRemote = nil;
                                 case kHIDUsage_Csmr_Menu:
                                         buttonCode = kHIDRemoteButtonCodeMenuHold;
                                 break;
+
+                                case kHIDUsage_Csmr_VolumeIncrement:
+                                        buttonCode = kHIDRemoteButtonCodeUp;
+                                break;
+
+                                case kHIDUsage_Csmr_VolumeDecrement:
+                                        buttonCode = kHIDRemoteButtonCodeDown;
+                                break;
                         }
                 break;
 
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