diff mbox

[2/2,hid-wacom] Implement Wacom quirk in the kernel

Message ID 1263988853.1735.2524.camel@localhost.localdomain
State New, archived
Delegated to: Jiri Kosina
Headers show

Commit Message

Bastien Nocera Jan. 20, 2010, noon UTC
None
diff mbox

Patch

diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 7475421..e55ed3f 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -155,7 +155,9 @@  static int wacom_probe(struct hid_device *hdev,
 	struct hid_input *hidinput;
 	struct input_dev *input;
 	struct wacom_data *wdata;
+	char rep_data[2];
 	int ret;
+	int limit;
 
 	wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
 	if (wdata == NULL) {
@@ -165,6 +167,7 @@  static int wacom_probe(struct hid_device *hdev,
 
 	hid_set_drvdata(hdev, wdata);
 
+	/* Parse the HID report now */
 	ret = hid_parse(hdev);
 	if (ret) {
 		dev_err(&hdev->dev, "parse failed\n");
@@ -177,6 +180,28 @@  static int wacom_probe(struct hid_device *hdev,
 		goto err_free;
 	}
 
+	/* Set Wacom mode2 */
+	rep_data[0] = 0x03; rep_data[1] = 0x00;
+	limit =3;
+	do {
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 2);
+	} while (ret < 0 && limit-- > 0);
+	if (ret < 0) {
+		dev_err(&hdev->dev, "failed to poke device #1, %d\n", ret);
+		goto err_free;
+	}
+
+	/* 0x06 - high reporting speed, 0x05 - low speed */
+	rep_data[0] = 0x06; rep_data[1] = 0x00;
+	limit = 3;
+	do {
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 2);
+	} while (ret < 0 && limit-- > 0);
+	if (ret < 0) {
+		dev_err(&hdev->dev, "failed to poke device #2, %d\n", ret);
+		goto err_free;
+	}
+
 	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
 	input = hidinput->input;