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bch24

Member

Registered: 2011-11-20

Posts: 27

Dmesg Noise: usb audio device?

I am getting a lot of kernel messages which I believe are comming from the sound card drivers. Example of output is as follows:

[230582.188195] 2:1:1: cannot get freq at ep 0x1
[230589.347812] 2:1:1: cannot get freq at ep 0x1
[230816.598122] 2:1:1: cannot get freq at ep 0x1
[231010.246759] 2:1:1: cannot get freq at ep 0x1
[231216.193296] 2:1:1: cannot get freq at ep 0x1
[231404.151819] 2:1:1: cannot get freq at ep 0x1
[231545.276190] 2:1:1: cannot get freq at ep 0x1

Anytime a new sound is played this message is produced. I.E. change song, alert notification, etc.

My sound card is a usb sound card hardwired to S24_3LE format 48000. 

The warning/message is very vague and it took me a while to notice the corollation to my soundcard. I'm comming from another linux distribution and have never had this error before with same hardware so am unsure if this is pointing out a config error.

Any help demistifying this message would be appreciated.

Thanks..

bch

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,354

Re: Dmesg Noise: usb audio device?

I think it has to do with it being a USB  device.  Is it plugged into a USB 2.0 port, or is it a 1.1 port?  (Check with lsusb -v or usb-devices)
Is it on a dedicated USB port, or is it plugged into a hub mixed with slow (USB 1.1) devices?

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bch24

Member

Registered: 2011-11-20

Posts: 27

Re: Dmesg Noise: usb audio device?

I think it has to do with it being a USB  device.  Is it plugged into a USB 2.0 port, or is it a 1.1 port?  (Check with lsusb -v or usb-devices)
Is it on a dedicated USB port, or is it plugged into a hub mixed with slow (USB 1.1) devices?

It is not pluged into a hub, but directly plugged into the motherboard usb port. The manual does not specify  whether it is a usb 1.1 or 2.0 device but just recomends an available usb 1.1 port. The output of usb-devices is:

$ usb-devices | grep -A 9 Bus=06
T:  Bus=06 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0001 Rev=03.01
S:  Manufacturer=Linux 3.1.1-1-ARCH uhci_hcd
S:  Product=UHCI Host Controller
S:  SerialNumber=0000:00:1d.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=06 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=13b2 ProdID=0008 Rev=01.01
S:  Manufacturer=Alesis
S:  Product=io|2
C:  #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
I:  If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I:  If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I:  If#= 3 Alt= 0 #EPs= 2 Cls=01(audio) Sub=03 Prot=00 Driver=snd-usb-audio

$