Bug 45557

Summary: Buttons > 16 might not be handled
Product: xorg Reporter: Bastien Nocera <bugzilla>
Component: Input/wacomAssignee: Peter Hutterer <peter.hutterer>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Bastien Nocera 2012-02-02 10:20:42 UTC 
The Cintiq 21UX2 has 16 buttons, and 2 touch rings (each touch ring is a scroll-wheel plus a button, so 3 buttons each), totalling 22 "mouse buttons".

The code in gnome-settings-daemon only seems to support 16, as does the X.org driver. Needs testing.
Comment 1 Jason Gerecke 2012-02-02 12:52:53 UTC 
Buttons > 16 are sent properly from the Cintiq 21UX2. XEV shows the final button emitting button 22 as it should.

That said, buttons > 16 cannot be re-mapped to other buttons. "xsetwacom set <id> button 17 key a" continues to send button 17, while trying buttons 18 and higher produce an "Invalid offset into Wacom Button Actions property." error (since the property only contains 16 items, regardless of how many buttons are present).
Comment 3 Peter Hutterer 2012-02-08 06:20:37 UTC 
commit 7e92aca68a666499c7d6f1946cc849cfb5653ae0
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Fri Feb 3 19:15:54 2012 +1000

    Initialize button action properties for the correct button number (#45557)

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