[PATCH 3.8 011/166] [media] af9035: [0ccd:0099] TerraTec Cinergy T Stick Dual RC (rev. 2)

Kamal Mostafa
2014-01-15T21:50:25Z

From: Antti Palosaari <crope@iki.fi>

commit b799b8102baa8e63139f0eadef00d75701328775 upstream.

That same USB ID is used both AF9015 and AF9035 driver.
iManufacturer is only thing we can select correct driver without a I/O.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/media/usb/dvb-usb-v2/af9035.c | 42 ++++++++++++++++++++++++++++++++++-
1 file changed, 41 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index c3cd6be..cbe1373 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -1046,6 +1046,43 @@ err:
return ret;
}

+static int af9035_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ char manufacturer[sizeof("Afatech")];
+
+ memset(manufacturer, 0, sizeof(manufacturer));
+ usb_string(udev, udev->descriptor.iManufacturer,
+ manufacturer, sizeof(manufacturer));
+ /*
+ * There is two devices having same ID but different chipset. One uses
+ * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
+ * is iManufacturer string.
+ *
+ * idVendor 0x0ccd TerraTec Electronic GmbH
+ * idProduct 0x0099
+ * bcdDevice 2.00
+ * iManufacturer 1 Afatech
+ * iProduct 2 DVB-T 2
+ *
+ * idVendor 0x0ccd TerraTec Electronic GmbH
+ * idProduct 0x0099
+ * bcdDevice 2.00
+ * iManufacturer 1 ITE Technologies, Inc.
+ * iProduct 2 DVB-T TV Stick
+ */
+ if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
+ (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
+ if (!strcmp("Afatech", manufacturer)) {
+ dev_dbg(&udev->dev, "%s: rejecting device\n", __func__);
+ return -ENODEV;
+ }
+ }
+
+ return dvb_usbv2_probe(intf, id);
+}
+
/* interface 0 is used by DVB-T receiver and
interface 1 is for remote controller (HID) */
static const struct dvb_usb_device_properties af9035_props = {
@@ -1135,6 +1172,9 @@ static const struct usb_device_id af9035_id_table[] = {
&af9035_props, "Asus U3100Mini Plus", NULL) },
{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
&af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
+ /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
+ { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
+ &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) },
{ }
};
MODULE_DEVICE_TABLE(usb, af9035_id_table);
@@ -1142,7 +1182,7 @@ MODULE_DEVICE_TABLE(usb, af9035_id_table);
static struct usb_driver af9035_usb_driver = {
.name = KBUILD_MODNAME,
.id_table = af9035_id_table,
- .probe = dvb_usbv2_probe,
+ .probe = af9035_probe,
.disconnect = dvb_usbv2_disconnect,
.suspend = dvb_usbv2_suspend,
.resume = dvb_usbv2_resume,
--
1.8.3.2