From: Nikolai Kondrashov <spbnick@gmail.com>
Date: Wed, 14 Sep 2016 18:38:20 +0000 (+0300)
Subject: HID: uclogic: Add support for UC-Logic TWHA60 v3
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3202bb7fb021e81dc988735a8b5f42f82aa912f3;p=linux-beck.git

HID: uclogic: Add support for UC-Logic TWHA60 v3

Add support for the third version of UC-Logic TWHA60, which has
three interfaces and responds to initialization.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index 64abd8d73125..1509d7287ff3 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c
@@ -938,6 +938,7 @@ static int uclogic_probe(struct hid_device *hdev,
 {
 	int rc;
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct usb_device *udev = hid_to_usb_dev(hdev);
 	struct uclogic_drvdata *drvdata;
 
 	/*
@@ -988,6 +989,28 @@ static int uclogic_probe(struct hid_device *hdev,
 			drvdata->ignore_pen_usage = true;
 		}
 		break;
+	case USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60:
+		/*
+		 * If it is the three-interface version, which is known to
+		 * respond to initialization.
+		 */
+		if (udev->config->desc.bNumInterfaces == 3) {
+			/* If it is the pen interface */
+			if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
+				rc = uclogic_tablet_enable(hdev);
+				if (rc) {
+					hid_err(hdev, "tablet enabling failed\n");
+					return rc;
+				}
+				drvdata->invert_pen_inrange = true;
+
+				rc = uclogic_button_enable(hdev);
+				drvdata->has_virtual_pad_interface = !rc;
+			} else {
+				drvdata->ignore_pen_usage = true;
+			}
+		}
+		break;
 	}
 
 	rc = hid_parse(hdev);