Re: [Alsa-user] USB Nuforce DAC-9

[Daniel M. <zo...@gm...>]

Hi,

On 02.10.2012 19:10, Robert wrote:
> Daniel Mack <zonque <at> gmail.com> writes:
> 
> 
>> Could you please post the output of "lsusb -v"?
>>
>> Daniel
> 
> Hi,
> 
> here is the output of the non-working Mageia machine:
> 
> https://dl.dropbox.com/u/1184591/mageia/lsusb-v.txt

Thanks. The problem is that there's a gap in the interface number
allocation:

>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
                               ^^^
[...]

>     Interface Association:
>       bLength                 8
>       bDescriptorType        11
>       bFirstInterface         2
>       bInterfaceCount         2

[...]

>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        2

While this doesn't make any sense, it is actually fine, but the USB core
code in older kernels doesn't like this and fails.

I fixed this just recently here:


https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=b3a3dd

So please try and install a newer kernel. If that problem persists with,
say, 3.6, please tell me :)


Best regards,
Daniel