linux-kernel - [PATCH 1/3] HID: wacom: Move Graphire raport header check.

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Date:	Tue, 15 May 2012 19:32:25 +0100
From:	Przemo Firszt <przemo@...szt.eu>
To:	pinglinux@...il.com, jkosina@...e.cz
Cc:	linuxwacom-devel@...ts.sourceforge.net,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Przemo Firszt <przemo@...szt.eu>
Subject: [PATCH 1/3] HID: wacom: Move Graphire raport header check.

That check is valid only for Wacom Graphire, as the device raports always
start with 0x03. Intuos4 WL high-speed raports begin with 0x04, so
the check would be filtering out valid reports.

Signed-off-by: Przemo Firszt <przemo@...szt.eu>
---
 drivers/hid/hid-wacom.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 29372ed..4fc4eeb 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -578,13 +578,15 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
 	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
 	input = hidinput->input;
 
-	/* Check if this is a tablet report */
-	if (data[0] != 0x03)
-		return 0;
-
 	switch (hdev->product) {
 	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
-		return wacom_gr_parse_report(hdev, wdata, input, data);
+		if (data[0] == 0x03) {
+			return wacom_gr_parse_report(hdev, wdata, input, data);
+		} else {
+			hid_err(hdev, "Unknown report: %d,%d size:%d\n",
+					data[0], data[1], size);
+			return 0;
+		}
 		break;
 	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
 		i = 1;
-- 
1.7.10.1

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