HID: LG: Prevent the Logitech Gaming Wheels deadzone

This patch ensures that the Logitech wheels are not initialised with
default fuzz/flat values, by marking them as multiaxis devices (rather
than joysticks).

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-lg.c

@@ -479,6 +479,26 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 			 usage->type == EV_REL || usage->type == EV_ABS))
 		clear_bit(usage->code, *bit);
 
+	/* Ensure that Logitech wheels are not given a default fuzz/flat value */
+	if (usage->type == EV_ABS && (usage->code == ABS_X ||
+			usage->code == ABS_Y || usage->code == ABS_Z ||
+			usage->code == ABS_RZ)) {
+		switch (hdev->product) {
+		case USB_DEVICE_ID_LOGITECH_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
+		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
+			field->application = HID_GD_MULTIAXIS;
+			break;
+		default:
+			break;
+		}
+	}
+
 	return 0;
 }