HID: uclogic: Support faking Wacom pad device ID
Add support for inserting a Wacom pad device ID into hid-uclogic
reports. This allows reporting dial inputs in a way compatible with the
Wacom driver. Needed for Ugee G5 support in particular.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index e4324ad..f5fb612 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -300,6 +300,16 @@ static int uclogic_raw_event(struct hid_device *hdev,
}
}
+ /* Tweak frame control reports, if necessary */
+ if ((report->type == HID_INPUT_REPORT) &&
+ (report->id == params->frame.id)) {
+ /* If need to, and can, set pad device ID for Wacom drivers */
+ if (params->frame.dev_id_byte > 0 &&
+ params->frame.dev_id_byte < size) {
+ data[params->frame.dev_id_byte] = 0xf;
+ }
+ }
+
return 0;
}