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* UAC2 defaults to max sampling rate
@ 2012-05-23  7:59 adelias
  2012-05-23  9:18 ` Clemens Ladisch
  0 siblings, 1 reply; 2+ messages in thread
From: adelias @ 2012-05-23  7:59 UTC (permalink / raw)
  To: alsa-devel; +Cc: zonque

Hi,

I'm running ALSA 1.0.23 and kernel 2.6.37 on ARM. The UAC2 audio device 
is the XMOS reference board.

This is what I'm observing. As soon as the XMOS board is plugged in to 
the USB port, the display on my DAC indicates that is has locked at 
192kHz which is the maximum sampling rate supported by the XMOS.

Is this the expected behavior or can I specify the defualt sampling rate 
at start up?

Thanks

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: UAC2 defaults to max sampling rate
  2012-05-23  7:59 UAC2 defaults to max sampling rate adelias
@ 2012-05-23  9:18 ` Clemens Ladisch
  0 siblings, 0 replies; 2+ messages in thread
From: Clemens Ladisch @ 2012-05-23  9:18 UTC (permalink / raw)
  To: adelias; +Cc: alsa-devel, zonque

adelias wrote:
> I'm running ALSA 1.0.23 and kernel 2.6.37 on ARM. The UAC2 audio device
> is the XMOS reference board.
>
> This is what I'm observing. As soon as the XMOS board is plugged in to
> the USB port, the display on my DAC indicates that is has locked at
> 192kHz which is the maximum sampling rate supported by the XMOS.

This is an as-yet unfixed bug in the driver.
(The usb_set_interface call in snd_usb_add_endpoint is completely
superfluous.)


Regards,
Clemens

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2012-05-23  7:59 UAC2 defaults to max sampling rate adelias
2012-05-23  9:18 ` Clemens Ladisch

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