This bug report was migrated from our old Bugzilla tracker.

These attachments are available in the static archive:

• A patch to fallback to detecting input devices using ID_CLAS (rhelInputs.patch, text/plain, 2014-04-03 09:00:44 +0000, 944 bytes)

Reported in version: HG 2.0
Reported for operating system, platform: Linux, x86_64

Comments on the original bug report:

On 2014-04-03 09:00:44 +0000, Ashley Whetter wrote:

Created attachment 1603
A patch to fallback to detecting input devices using ID_CLAS

RHEL6 and CentOS6 systems still use an old version of udev (147). It wasn't until udev 148 (Yep. 1 version off!) that the input class system changed from "ID_CLASS" to "ID_INPUT_{JOYSTICK,KEYBOARD,MOUSE,etc}" (http://lwn.net/Articles/364728/). Because SDL2 looks for the ID_INPUT_X field this means that it never detects any input devices on RHEL6 systems.

I've attached a patch which fixes the problem. If no input devices are detected with "ID_INPUT_X" then SDL will fallback to looking for the old style "ID_CLASS" udev field instead.
Because of the "big change" between udev versions I doubt it'll ever get upgraded on RHEL6, but because RHEL7 is on the way I don't know if this patch is worth merging. Hopefully it'll help anyone out that's having this problem though.

On 2014-04-18 03:19:37 +0000, Sam Lantinga wrote:

Looks good to me, thanks!
https://hg.libsdl.org/SDL/rev/a4346af9eec4