{ USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 
        /* CSR BlueCore Bluetooth Sniffer */
-       { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
+       { USB_DEVICE(0x0a12, 0x0002),
+         .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 
        /* Frontline ComProbe Bluetooth Sniffer */
-       { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
+       { USB_DEVICE(0x16d3, 0x0002),
+         .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 
        /* Intel Bluetooth device */
        { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
                /* New sniffer firmware has crippled HCI interface */
                if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
                        set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
-
-               data->isoc = NULL;
        }
 
        if (id->driver_info & BTUSB_INTEL_BOOT) {