[LAU] USB audio interface and a buggy USB controller

Jeremy Jongepier jeremy at autostatic.com
Tue Sep 14 12:29:28 UTC 2010


On 09/14/2010 02:23 PM, Clemens Ladisch wrote:
> Jeremy Jongepier wrote:
>> cannot submit datapipe for urb 0, error -28: not enough bandwidth
> 
> Is CONFIG_USB_EHCI_TT_NEWSCHED enabled in your kernel's configuration?
> 
> Can you try with or without a hub?
> 

I can't try with a hub, I don't have any.

cat /boot/config-2.6.31-11-rt | grep CONFIG_USB_EHCI_TT_NEWSCHED
CONFIG_USB_EHCI_TT_NEWSCHED=y

cat /boot/config-2.6.32-24-generic | grep CONFIG_USB_EHCI_TT_NEWSCHED
CONFIG_USB_EHCI_TT_NEWSCHED=y

So CONFIG_USB_EHCI_TT_NEWSCHED is enabled.

Best,

Jeremy


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