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Bug 4695

Summary: [PATCH] Implement joystick hotplugging fallback when udev is unavailable
Product: SDL Reporter: Cameron Gutman <cameron.gutman>
Component: joystickAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: x86_64   
OS: Linux   
Attachments: Hotplugging non-udev fallback patch
Hotplugging non-udev fallback patch v2

Description Cameron Gutman 2019-06-25 05:13:08 UTC 
Udev is not available for SDL apps bundled into Flatpaks. In order to support hotplugging in Flatpaks, I've added a fallback polling-based hot add similar to how HIDAPI works without udev and used the ENODEV error code for hot remove. I also gave the non-udev codepaths some TLC while I was here.
Comment 1 Cameron Gutman 2019-06-25 05:14:04 UTC 
Created attachment 3844 [details]
Hotplugging non-udev fallback patch
Comment 2 Cameron Gutman 2019-06-25 06:05:47 UTC 
Created attachment 3845 [details]
Hotplugging non-udev fallback patch v2

Apologies, the initial patch had a use-after-free in HandlePendingRemovals(). This one is fixed.
Comment 3 Sam Lantinga 2019-07-15 17:58:27 UTC 
This has been added for 2.0.10, thanks!
https://hg.libsdl.org/SDL/rev/886b79177762