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authorMarcel Holtmann <marcel@holtmann.org>2017-10-24 20:42:45 +0300
committerJohan Hedberg <johan.hedberg@intel.com>2017-10-30 13:28:13 +0300
commit459232fc0e2505d489e2dc3befc1ad01dcdccb47 (patch)
tree9c6b8328ae579cfa390190b0084557bde439088e /drivers/bluetooth/btusb.c
parentaf3715e5cef8859571cabecc71e1cd4cc5869d6a (diff)
downloadlinux-459232fc0e2505d489e2dc3befc1ad01dcdccb47.tar.xz
Bluetooth: btusb: Fix isochronous interface assignments
The recent MacBook's with multi-function USB interfaces for HID and Bluetooth operation have the isochronous interface on number 3 instead of number 1. Store the interface number and use it. P: Vendor=05ac ProdID=8290 Rev= 1.40 S: Manufacturer=Broadcom Corp. S: Product=Bluetooth USB Host Controller C:* #Ifs= 6 Cfg#= 1 Atr=e0 MxPwr= 0mA A: FirstIf#= 2 IfCount= 4 Cls=ff(vend.) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=85(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 3 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 3 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 3 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 3 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 3 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 5 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
-rw-r--r--drivers/bluetooth/btusb.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index d56905fed79d..f7120c9eb9bd 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -397,6 +397,7 @@ struct btusb_data {
struct usb_interface *intf;
struct usb_interface *isoc;
struct usb_interface *diag;
+ unsigned isoc_ifnum;
unsigned long flags;
@@ -1360,7 +1361,7 @@ static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
if (!data->isoc)
return -ENODEV;
- err = usb_set_interface(data->udev, 1, altsetting);
+ err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
if (err < 0) {
bt_dev_err(hdev, "setting interface failed (%d)", -err);
return err;
@@ -3142,6 +3143,7 @@ static int btusb_probe(struct usb_interface *intf,
} else {
/* Interface orders are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
+ data->isoc_ifnum = ifnum_base + 1;
}
if (!reset)