From 388d0cf7c2ffa79ff5b966feafaa26c594c60e59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Hempel?= <heliflieger@users.noreply.github.com>
Date: Sun, 6 Feb 2022 13:32:10 +0100
Subject: [PATCH] Linux: Fix joystick without buttons being ignored

Joysticks in Linux without buttons were ignored by device enumeration.
Remove the mandatory button attribute from detection.

Fixes #2042
Closes #2043

(cherry picked from commit c424fe55892e7ac7c849989b9ab5e143825fdd4e)
---
 src/linux_joystick.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/linux_joystick.c b/src/linux_joystick.c
index 0894a726..5d8c8d04 100644
--- a/src/linux_joystick.c
+++ b/src/linux_joystick.c
@@ -157,7 +157,7 @@ static GLFWbool openJoystickDevice(const char* path)
     }
 
     // Ensure this device supports the events expected of a joystick
-    if (!isBitSet(EV_KEY, evBits) || !isBitSet(EV_ABS, evBits))
+    if (!isBitSet(EV_ABS, evBits))
     {
         close(linjs.fd);
         return GLFW_FALSE;