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-rw-r--r--drivers/bluetooth/btusb.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e1124ba44154..e8d8a3f61f5b 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -66,6 +66,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_BCM2045 0x40000
#define BTUSB_IFNUM_2 0x80000
#define BTUSB_CW6622 0x100000
+#define BTUSB_BCM_NO_PRODID 0x200000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -170,6 +171,10 @@ static const struct usb_device_id btusb_table[] = {
{ USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
.driver_info = BTUSB_BCM_PATCHRAM },
+ /* Broadcom devices with missing product id */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0000, 0x0000, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM | BTUSB_BCM_NO_PRODID },
+
/* Intel Bluetooth USB Bootloader (RAM module) */
{ USB_DEVICE(0x8087, 0x0a5a),
.driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
@@ -2899,6 +2904,19 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info == BTUSB_IGNORE)
return -ENODEV;
+ if (id->driver_info & BTUSB_BCM_NO_PRODID) {
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ /* For the broken Broadcom devices that show 0000:0000
+ * as USB vendor and product information, check that the
+ * manufacturer string identifies them as Broadcom based
+ * devices.
+ */
+ if (!udev->manufacturer ||
+ strcmp(udev->manufacturer, "Broadcom Corp"))
+ return -ENODEV;
+ }
+
if (id->driver_info & BTUSB_ATH3012) {
struct usb_device *udev = interface_to_usbdev(intf);