linux-kernel - [PATCH 3.11 102/208] HID: usbhid: quirk for Synaptics Large Touchccreen

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Date:	Thu, 19 Dec 2013 11:53:20 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	AceLan Kao <acelan.kao@...onical.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.11 102/208] HID: usbhid: quirk for Synaptics Large Touchccreen

3.11.10.2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: AceLan Kao <acelan.kao@...onical.com>

commit 8171a67d587a09e14a4949a81e070345fedcf410 upstream.

BugLink: http://bugs.launchpad.net/bugs/1180881

Synaptics large touchscreen doesn't support some of the report request
while initializing. The unspoorted request will make the device unreachable,
and will lead to the following usb_submit_urb() function call timeout.
So, add the IDs into HID_QUIRK_NO_INIT_REPORTS quirk.

Signed-off-by: AceLan Kao <acelan.kao@...onical.com>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/hid/hid-ids.h           | 2 ++
 drivers/hid/usbhid/hid-quirks.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 96fa2d1..5e791dc 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -804,6 +804,8 @@
 #define USB_DEVICE_ID_SYNAPTICS_COMP_TP	0x0009
 #define USB_DEVICE_ID_SYNAPTICS_WTP	0x0010
 #define USB_DEVICE_ID_SYNAPTICS_DPAD	0x0013
+#define USB_DEVICE_ID_SYNAPTICS_LTS1	0x0af8
+#define USB_DEVICE_ID_SYNAPTICS_LTS2	0x1d10
 
 #define USB_VENDOR_ID_THINGM		0x27b8
 #define USB_DEVICE_ID_BLINK1		0x01ed
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index ae5c634..54413b84 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -112,6 +112,8 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS },
 
 	{ 0, 0 }
 };
-- 
1.8.3.2

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