linux-kernel - [PATCH 3.12 050/124] [media] si4713: HID blacklist Si4713 USB development board

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Message-Id: <db2157d74d95e869da5b8d568926f9398d19fad0.1438076484.git.jslaby@suse.cz>
Date:	Tue, 28 Jul 2015 11:43:04 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Dinesh Ram <Dinesh.Ram@...n.ch>,
	Dinesh Ram <dinesh.ram@...n.ch>, Jiri Kosina <jkosina@...e.cz>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 050/124] [media] si4713: HID blacklist Si4713 USB development board

From: Dinesh Ram <Dinesh.Ram@...n.ch>

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

===============

commit adc232592337d3ac4c5473ba8bdaf7c202bf215d upstream.

The Si4713 development board contains a Si4713 FM transmitter chip
and is handled by the radio-usb-si4713 driver.
The board reports itself as (10c4:8244) Cygnal Integrated Products, Inc.
and misidentifies itself as a HID device in its USB interface descriptor.
This patch ignores this device as an HID device and hence loads the custom driver.

Signed-off-by: Dinesh Ram <dinesh.ram@...n.ch>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Acked-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Hans Verkuil <hans.verkuil@...co.com>
Tested-by: Eduardo Valentin <edubezval@...il.com>
Acked-by: Eduardo Valentin <edubezval@...il.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@...sung.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/hid/hid-core.c | 1 +
 drivers/hid/hid-ids.h  | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 14254783097e..465e42eb2984 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2148,6 +2148,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 00a8d9dbd296..d0089cda3a84 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -242,6 +242,8 @@
 #define USB_VENDOR_ID_CYGNAL		0x10c4
 #define USB_DEVICE_ID_CYGNAL_RADIO_SI470X	0x818a
 
+#define USB_DEVICE_ID_CYGNAL_RADIO_SI4713       0x8244
+
 #define USB_VENDOR_ID_CYPRESS		0x04b4
 #define USB_DEVICE_ID_CYPRESS_MOUSE	0x0001
 #define USB_DEVICE_ID_CYPRESS_HIDCOM	0x5500
-- 
2.4.6

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