[Bug 60824] [PATCH][regression] Cambridge Silicon Radio, Ltd Bluetooth Dongle unusable

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60824

Alex (alex.kr.job@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alex.kr.job@gmail.com

--- Comment #55 from Alex (alex.kr.job@gmail.com) ---
Hi,
My issue with this device looks a little different, and after applying the
latest patch from the thread I still have the issue.

btmon shows the following (last lines, see Set Event Filter error):

#20 [hci0] 9.289041
      Read Number of Supported IAC (0x03|0x0038) ncmd 1
        Status: Success (0x00)
        Number of IAC: 2
< HCI Command: Read Current IAC LAP (0x03|0x0039) plen 0                       
                                                         #21 [hci0] 9.289050
> HCI Event: Command Complete (0x0e) plen 8                                    
>                                                          #22 [hci0] 9.291043
      Read Current IAC LAP (0x03|0x0039) ncmd 1
        Status: Success (0x00)
        Number of IAC: 1
        Access code: 0x9e8b33 (General Inquiry)
< HCI Command: Set Event Filter (0x03|0x0005) plen 1                           
                                                         #23 [hci0] 9.291049
        Type: Clear All Filters (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                    
>                                                          #24 [hci0] 9.293040
      Set Event Filter (0x03|0x0005) ncmd 1
        Status: Invalid HCI Command Parameters (0x12)
= Close Index: 00:1A:7D:DA:71:12                                               
                                                             [hci0] 9.293052


and the device stays down and inaccessible
Here is data from my system:

hciconfig -a 
hci0:   Type: Primary  Bus: USB
        BD Address: 00:1A:7D:DA:71:12  ACL MTU: 679:8  SCO MTU: 48:16
        DOWN 
        RX bytes:706 acl:0 sco:0 events:22 errors:0
        TX bytes:68 acl:0 sco:0 commands:22 errors:0
        Features: 0xbf 0x2e 0x4d 0xfa 0xd8 0x3d 0x7b 0x87
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV3 
        Link policy: 
        Link mode: SLAVE ACCEPT 

hciconfig  hci0 up
Can't init device hci0: Invalid argument (22)

[bluetooth]# list
[bluetooth]# 

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 14cd:125c Super Top SD card reader
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 018: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle
(HCI mode)
Bus 001 Device 003: ID 04b3:3025 IBM Corp. NetVista Full Width Keyboard
Bus 001 Device 002: ID 0bda:b812 Realtek Semiconductor Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

dmesg (extract)
[ 5284.357208] usbcore: deregistering interface driver btusb
[ 5287.608129] usb 1-7: new full-speed USB device number 18 using xhci_hcd
[ 5287.758895] usb 1-7: config 1 interface 1 altsetting 0 endpoint 0x3 has
wMaxPacketSize 0, skipping
[ 5287.758904] usb 1-7: config 1 interface 1 altsetting 0 endpoint 0x83 has
wMaxPacketSize 0, skipping
[ 5287.759639] usb 1-7: New USB device found, idVendor=0a12, idProduct=0001,
bcdDevice=88.91
[ 5287.759647] usb 1-7: New USB device strings: Mfr=0, Product=2,
SerialNumber=0
[ 5287.759651] usb 1-7: Product: BT DONGLE10
[ 5287.785780] btusb: New fixups. Device: 0x0a12:0x0001/0x8891. Rule 1/1 (5
terms): 0x0a12:0x0001/0x8891
[ 5287.785781] btusb: driver flags: initial => 0x0000000000000004
[ 5287.785783] btusb: driver flags: masked  => 0x0000000000800000
[ 5287.785902] usbcore: registered new interface driver btusb
[ 5395.553658] debugfs: File 'dut_mode' in directory 'hci0' already present!

hcidump -X is attached
Any suggestions/fixes are really appreciated.
Please let me know if some info is missing.

Thanks,
Alex.

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