diff options
| author | Tomasz Moń <tomasz.mon@nordicsemi.no> | 2023-02-07 14:57:41 +0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-04-24 07:44:28 +0300 |
| commit | c13380a55522bf14e54779a142487c224509db95 (patch) | |
| tree | b06d7986f93e50cacd1e66e1dbc6cca61a83589a /drivers/bluetooth/btusb.c | |
| parent | a80d2c545ded86d0350b9a870735565d8b749786 (diff) | |
| download | linux-c13380a55522bf14e54779a142487c224509db95.tar.xz | |
Bluetooth: btusb: Do not require hardcoded interface numbers
Remove hardcoded interface number check because Bluetooth specification
since version 4.0 only recommends and no longer requires specific
interface numbers.
While earlier Bluetooth versions, i.e. 2.1 + EDR and 3.0 + HS, contain
required configuration table in Volume 4 - Host Controller Interface
Part B - USB Transport Layer, Bluetooth Core Specification Addendum 2
changes the table from required to recommended configuration.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 5c536151ef83..4ca91c033d2f 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3831,13 +3831,9 @@ 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) { - if (!(id->driver_info & BTUSB_IFNUM_2)) - return -ENODEV; - if (intf->cur_altsetting->desc.bInterfaceNumber != 2) - return -ENODEV; - } + if ((id->driver_info & BTUSB_IFNUM_2) && + (intf->cur_altsetting->desc.bInterfaceNumber != 2)) + return -ENODEV; ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; |