>From b77d709b9defc08a1348922d5001164a5598c654 Mon Sep 17 00:00:00 2001
From: Costa Yao <cqyao@xxxxxxxxxxxxxxxx>
Date: Thu, 29 Dec 2011 14:42:23 +0800
Subject: [PATCH] Bluetooth: btusb: Use macro USB_INTERFACE_INFO to do device match
1 Use USB_INTERFACE_INFO to do device match, other than USB_DEVICE_INFO.
2 Delete desc.bInterfaceNumber != 0 check.
Signed-off-by: Costa Yao <cqyao@xxxxxxxxxxxxxxxx>
---
drivers/bluetooth/btusb.c | 16 ++++++++--------
1 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fbfba80..9e56de0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -57,8 +57,8 @@ static struct usb_driver btusb_driver;
#define BTUSB_ATH3012 0x80
static struct usb_device_id btusb_table[] = {
- /* Generic Bluetooth USB device */
- { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
+ /* Bluetooth USB interface */
+ { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
/* Broadcom SoftSailing reporting vendor specific */
{ USB_DEVICE(0x05ac, 0x21e1) },
@@ -913,10 +913,6 @@ static int btusb_probe(struct usb_interface *intf,
BT_DBG("intf %p id %p", intf, id);
- /* interface numbers are hardcoded in the spec */
- if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
- return -ENODEV;
-
if (!id->driver_info) {
const struct usb_device_id *match;
match = usb_match_id(intf, blacklist_table);
@@ -1012,8 +1008,12 @@ static int btusb_probe(struct usb_interface *intf,
hdev->owner = THIS_MODULE;
- /* Interface numbers are hardcoded in the specification */
- data->isoc = usb_ifnum_to_if(data->udev, 1);
+ /* According to HCI-USB specification, the interface for
+ * SCO data endpoints follows the interface for commands,
+ * events and ACL data
+ */
+ data->isoc = usb_ifnum_to_if(data->udev,
+ intf->cur_altsetting->desc.bInterfaceNumber + 1);
if (!reset)
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
--
1.7.4.1
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