[LAD] Support for Steinberg UR22 (Yamaha USB chipset 0499:1509)?

[covux]

Hi Clemens,

On 04/14/2014 03:26 PM, Clemens Koller wrote:
> Hi, Christian
>
> On 04/07/2014 08:51 PM, covux wrote:> Hi Clemens
>>
>>> Well, there is the patch from Clemens Ladisch:
>>> http://linuxaudio.org/mailarchive/lad/2013/2/23/197831
>>>
>>> This was working for me.
>>>
>>> However, I didn't test that with 3.13.x lately as I only
>>> needed the UR22 to suck in some measurement data from a
>>> low noise microphone at that time.
>>
>> yep, I tried that patch with 3.13 and 3.14.
>> Worked both, but only with USB 2.0 as stated before.
>
> I got some time to verify that patch on 3.14.0.
>
> Here, I don't see any difference if I use USB 2.0 or 3.0.
> Both work fine. On USB3.0 I recorded about 7h continously
> without a glitch.
>
> Let me know if you need more details.
>
> Regards,
>
> Clemens
> ---

thanks for testing it. Maybe it is the USB 3.0 Controller of T440s, 
which causes the probs.

00:14.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB xHCI 
HC [8086:9c31] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: xhci_hcd

Cheers,
Christian