From e714f6590ef4f8ad46243c511e5c0582ee4f732a Mon Sep 17 00:00:00 2001
From: Mai Lavelle <mai.lavelle@gmail.com>
Date: Tue, 7 Aug 2018 12:06:31 -0400
Subject: [PATCH] haptic: Fix initial detection of haptic devices on Linux
 system

SDL_UDEV_Scan must be called during SDL_SYS_HapticInit to ensure devices
outside of the 0-31 range are added to the list of haptic devices.

Fixes Bugzilla #3923.
---
 src/haptic/linux/SDL_syshaptic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/haptic/linux/SDL_syshaptic.c b/src/haptic/linux/SDL_syshaptic.c
index 9c11a2f0e..2f6bd4059 100644
--- a/src/haptic/linux/SDL_syshaptic.c
+++ b/src/haptic/linux/SDL_syshaptic.c
@@ -181,6 +181,9 @@ SDL_SYS_HapticInit(void)
         SDL_UDEV_Quit();
         return SDL_SetError("Could not setup haptic <-> udev callback");
     }
+
+    /* Force a scan to build the initial device list */
+    SDL_UDEV_Scan();
 #endif /* SDL_USE_LIBUDEV */
 
     return numhaptics;