[PATCH xserver] xwayland: Support for BTN_STYLUS3 kernel events

[Jason Gerecke]

BTN_STYLUS3 has been introduced by the Linux 4.15 kernel to report the
status of the third button present on Wacom's new "Pro Pen 3D" stylus.
Treat this button like xf86-input-wacom and send a button 8 event
("navigate back") when received from Wayland.

Signed-off-by: Jason Gerecke <jason.gerecke at wacom.com>
---
Note: this patch is pending the formal acceptance of BTN_STYLU3 into
Linux 4.15. I'll post an update once Jiri merges the patch.

 hw/xwayland/xwayland-input.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/xwayland/xwayland-input.c b/hw/xwayland/xwayland-input.c
index 68e365051..4325b4c6e 100644
--- a/hw/xwayland/xwayland-input.c
+++ b/hw/xwayland/xwayland-input.c
@@ -1698,6 +1698,7 @@ tablet_tool_button_state(void *data, struct zwp_tablet_tool_v2 *tool,
 
         case 0x113: /* BTN_SIDE    */
         case 0x116: /* BTN_BACK    */
+        case 0x149: /* BTN_STYLUS3 */
             xbtn = 8;
             break;
 
-- 
2.15.0