Comment 175 for bug 1136110

I have no idea if I have done what you desire correctly - given it's my first attempt to do so, however I hope the following will be helpful.

markrich@markys-home-pc:~$ lsusb
Bus 002 Device 005: ID 18d1:4ee1 Google Inc. Nexus 4
Bus 002 Device 004: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 002 Device 003: ID 07b5:0317 Mega World International, Ltd
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 007: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 003: ID 0b05:17b5 ASUSTek Computer, Inc.
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 003 Device 004: ID 0c56:0003 Billion Bright, Ltd <---------------------------- THIS IS THE ARCAM USB DAC DEVICE
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
markrich@markys-home-pc:~$

Linux markys-home-pc 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Result of DMESG upon inserting the device to the computer.

[12577.154663] usb 3-4: USB disconnect, device number 3
[12581.537084] usb 3-4: new full-speed USB device number 4 using xhci_hcd
[12582.385769] usb 3-4: New USB device found, idVendor=0c56, idProduct=0003
[12582.385774] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12582.385777] usb 3-4: Product: ARCAM Wireless Audio
[12582.385779] usb 3-4: Manufacturer: ARCAM
[12582.395414] 4:1:1: cannot get freq at ep 0x1
[12582.417913] 4:1:1: cannot get freq at ep 0x1
[12582.420866] 4:1:1: cannot get freq at ep 0x1
[12582.437893] 4:1:1: cannot get freq at ep 0x1
[12582.440824] 4:1:1: cannot get freq at ep 0x1
[12582.448387] 4:1:1: cannot get freq at ep 0x1
[12582.451144] 4:1:1: cannot get freq at ep 0x1

These last repeating lines seem to crop up a lot on reports of this problem as I have been searching around Google for answers.

T: Bus=03 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0c56 ProdID=0003 Rev= 1.10
S: Manufacturer=ARCAM
S: Product=ARCAM Wireless Audio
C:* #Ifs= 2 Cfg#= 1 Atr=00 MxPwr= 20mA
I:* If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
I:* If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I: If#= 1 Alt= 1 #EPs= 2 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
E: Ad=01(O) Atr=05(Isoc) MxPS= 585 Ivl=1ms
E: Ad=81(I) Atr=01(Isoc) MxPS= 3 Ivl=1ms

This information comes from, cat /sys/kernel/debug/usb/devices

I played a sound file and outputted the results (I think) to the attached file for you to see according to the instructions.