https://bugzilla.kernel.org/show_bug.cgi?id=205685 Bug ID: 205685 Summary: Initialization failure for Cambridge Silicon Radio, Ltd Bluetooth Dongle Product: Drivers Version: 2.5 Kernel Version: 4.19.67-2+deb10u2 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: low Priority: P1 Component: Bluetooth Assignee: linux-bluetooth@xxxxxxxxxxxxxxx Reporter: net@xxxxxxxxxx Regression: No Created attachment 286091 --> https://bugzilla.kernel.org/attachment.cgi?id=286091&action=edit btmon trace Hello, I own a bluetooth USB adapter that fails to initialize. The other bugs I saw deal with other device, hence this new one. $ sudo hciconfig hci0: Type: Primary Bus: USB BD Address: 00:1A:7D:DA:XX:XX ACL MTU: 679:9 SCO MTU: 48:16 DOWN RX bytes:1722 acl:0 sco:0 events:90 errors:0 TX bytes:1104 acl:0 sco:0 commands:90 errors:0 $ sudo hciconfig hci0 up Can't init device hci0: Operation not supported (95) The device is the following one (full lsusb output attached as file) Bus 001 Device 008: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x0a12 Cambridge Silicon Radio, Ltd idProduct 0x0001 Bluetooth Dongle (HCI mode) bcdDevice 88.91 iManufacturer 0 iProduct 2 iSerial 0 I attach a btmon trace that seems to indicate that the "Delete Stored Link Key" is not supported. Is there a way to support this device in degraded mode in case the feature is not supported ? Cheers -- You are receiving this mail because: You are the assignee for the bug.
