if (ret)
                err("eeprom read failed:%d", ret);
 
+       /* AverMedia AVerTV Volar Black HD (A850) device have bad EEPROM
+          content :-( Override some wrong values here. */
+       if (le16_to_cpu(udev->descriptor.idVendor) == USB_VID_AVERMEDIA &&
+           le16_to_cpu(udev->descriptor.idProduct) == USB_PID_AVERMEDIA_A850) {
+               deb_info("%s: AverMedia A850: overriding config\n", __func__);
+               /* disable dual mode */
+               af9015_config.dual_mode = 0;
+                /* disable 2nd adapter */
+               for (i = 0; i < af9015_properties_count; i++)
+                       af9015_properties[i].num_adapters = 1;
+
+               /* set correct IF */
+               af9015_af9013_config[0].tuner_if = 4570;
+       }
+
        return ret;
 }
 
        {USB_DEVICE(USB_VID_KWORLD_2,  USB_PID_KWORLD_395U_2)},
        {USB_DEVICE(USB_VID_KWORLD_2,  USB_PID_KWORLD_395U_3)},
        {USB_DEVICE(USB_VID_AFATECH,   USB_PID_TREKSTOR_DVBT)},
+       {USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A850)},
        {0},
 };
 MODULE_DEVICE_TABLE(usb, af9015_usb_table);
 
                .i2c_algo = &af9015_i2c_algo,
 
-               .num_device_descs = 8,
+               .num_device_descs = 9,
                .devices = {
                        {
                                .name = "Xtensions XD-380",
                                .cold_ids = {&af9015_usb_table[19], NULL},
                                .warm_ids = {NULL},
                        },
+                       {
+                               .name = "AverMedia AVerTV Volar Black HD " \
+                                       "(A850)",
+                               .cold_ids = {&af9015_usb_table[20], NULL},
+                               .warm_ids = {NULL},
+                       },
                }
        }
 };
 
 #define USB_PID_AVERMEDIA_VOLAR_X_2                    0x8150
 #define USB_PID_AVERMEDIA_A309                         0xa309
 #define USB_PID_AVERMEDIA_A310                         0xa310
+#define USB_PID_AVERMEDIA_A850                         0x850a
 #define USB_PID_TECHNOTREND_CONNECT_S2400               0x3006
 #define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY       0x005a
 #define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY_2     0x0081