[Bug 205821] New: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

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https://bugzilla.kernel.org/show_bug.cgi?id=205821

            Bug ID: 205821
           Summary: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth
                    Dongle (HCI mode)
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.19.0-6-amd64
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@xxxxxxxxxxxxxxx
          Reporter: demonik_82@xxxxxxx
        Regression: No

$ hcitool dev
Devices:
$ hcitool scan
Device is not available: No such device

$ lsusb
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle
(HCI mode)
Bus 001 Device 004: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
Bus 001 Device 003: ID 040b:2000 Weltrend Semiconductor 
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ systemctl status bluetooth.service
● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor
preset
   Active: active (running) since Tue 2019-12-10 15:23:47 +05; 53min ago
     Docs: man:bluetoothd(8)
 Main PID: 604 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   Memory: 3.0M
   CGroup: /system.slice/bluetooth.service
           └─604 /usr/lib/bluetooth/bluetoothd

rfkill list all
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

journalctl -b | grep firmware
дек 10 15:23:48 dev NetworkManager[606]: <info>  [1575973428.5871]
manager[0x557f0fb14020]: monitoring kernel firmware directory '/lib/firmware'.
дек 10 15:23:51 dev kernel: r8169 0000:03:00.0: firmware: direct-loading
firmware rtl_nic/rtl8168f-1.fw
дек 10 15:24:16 dev systemd[1]: Startup finished in 8.999s (firmware) + 6.482s
(loader) + 4.575s (kernel) + 45.463s (userspace) = 1min 5.521s.

hciconfig
hci0:   Type: Primary  Bus: USB
        BD Address: 00:1A:7D:DA:71:11  ACL MTU: 679:9  SCO MTU: 48:16
        DOWN 
        RX bytes:574 acl:0 sco:0 events:30 errors:0
        TX bytes:368 acl:0 sco:0 commands:30 errors:0

hciconfig hci0 up
Can't init device hci0: Operation not supported (95)

Help please

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