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New: Initialization failure for Cambridge Silicon Radio, Ltd Bluetooth Dongle

Bug 205685 [email protected] 1 participant 4 messages Nov 27, 2019 – Oct 7, 2020 Bluetooth drivers

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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: [email protected]
          Reporter: [email protected]
        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

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#2 lore raw

[Bug 205685] Initialization failure for Cambridge Silicon Radio, Ltd Bluetooth Dongle

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=205685

[email protected] changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]

--- Comment #2 from [email protected] ---

lsusb output

Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

It also doesn't work with the kernel of AVLinux (Debian + Ubuntu)

uname -a

Linux ***** 5.4.28avl2-lowlatency #22 SMP PREEMPT Fri Apr 3 05:54:55 EDT 2020 x86_64 GNU/Linux

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You are the assignee for the bug.
author
#3 lore raw

[Bug 205685] Initialization failure for Cambridge Silicon Radio, Ltd Bluetooth Dongle

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=205685

--- Comment #3 from [email protected] ---
(In reply to sisisisol from comment #2)

Quoted 11 lines

lsusb output

Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

It also doesn't work with the kernel of AVLinux (Debian + Ubuntu)

uname -a

Linux ***** 5.4.28avl2-lowlatency #22 SMP PREEMPT Fri Apr 3 05:54:55 EDT 2020 x86_64 GNU/Linux

I forgot to mention is USB to Bluetooth Version 5.0

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