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[09/19] HID: wacom: generic: Add support for vendor-defined "Fingerwheel" usage

Message ID 20161006212231.31440-10-killertofu@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Gerecke, Jason Oct. 6, 2016, 9:22 p.m. UTC 
The airbrush fingerwheel does not have a usage that corresponds cleanly
with a standard HID usage, so we add explicit support for it via its
vendor-defined usage.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
---
 drivers/hid/wacom_wac.c | 3 +++
 drivers/hid/wacom_wac.h | 1 +
 2 files changed, 4 insertions(+)
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Patch

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index aa51684..009c25d 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1539,6 +1539,9 @@  static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
 	case HID_DG_TOOLSERIALNUMBER:
 		wacom_map_usage(input, usage, field, EV_MSC, MSC_SERIAL, 0);
 		break;
+	case WACOM_HID_WD_FINGERWHEEL:
+		wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
+		break;
 	}
 }
 
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 1ced6e4..18cae38 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -89,6 +89,7 @@ 
 #define WACOM_HID_SP_DIGITIZERINFO      0x00100000
 #define WACOM_HID_WD_DIGITIZER          (WACOM_HID_UP_WACOMDIGITIZER | 0x01)
 #define WACOM_HID_WD_DISTANCE           (WACOM_HID_UP_WACOMDIGITIZER | 0x0132)
+#define WACOM_HID_WD_FINGERWHEEL        (WACOM_HID_UP_WACOMDIGITIZER | 0x0d03)
 #define WACOM_HID_WD_DATAMODE           (WACOM_HID_UP_WACOMDIGITIZER | 0x1002)
 #define WACOM_HID_UP_G9                 0xff090000
 #define WACOM_HID_G9_PEN                (WACOM_HID_UP_G9 | 0x02)