HID: hid-input: Add eraser usage to hidinput_configure_usage

Some tablets report eraser usage to indicate the eraser tool tip
is touching the surface. But, hidinput_configure_usage didn't
support the usage, which led it falls into default as ABS_MISC.

Signed-off-by: Ping Cheng <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 199f6a01fc629ead34108da7ddc895269ed0820a..04d01b57d94c8280d2d6a63ef863136165555c11 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -797,6 +797,15 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                        map_key_clear(BTN_STYLUS);
                        break;
 
+               case 0x45: /* ERASER */
+                       /*
+                        * This event is reported when eraser tip touches the surface.
+                        * Actual eraser (BTN_TOOL_RUBBER) is set by Invert usage when
+                        * tool gets in proximity.
+                        */
+                       map_key_clear(BTN_TOUCH);
+                       break;
+
                case 0x46: /* TabletPick */
                case 0x5a: /* SecondaryBarrelSwitch */
                        map_key_clear(BTN_STYLUS2);