From: Greg KH on
On Tue, Jun 22, 2010 at 01:58:12PM +0100, Sid Boyce wrote:
> I have an application using the on-board sound card mic which should
> send it's data to the USB card for relay to a Sofweare Defined Radio
> as 2 quadrature signals digital (I/Q) for transmission.
> On the receiving side it can take data from the Radio at up to 192K
> sample rate --> program --> Speaker on the on-board sound card -
> that works fine.
> Transmit fails, dmesg output with 48K sample rate set is:-
> [509686.177169] ALSA sound/usb/clock.c:214: 6:2:3: endpoint lacks
> sample rate attribute bit, cannot set.
> [509686.187920] ALSA sound/usb/clock.c:214: 6:2:1: endpoint lacks
> sample rate attribute bit, cannot set.

Looks like your device does not support this :(

Have you asked on the alsa mailing list?

thanks,

greg k-h
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From: Daniel Mack on
On Tue, Jun 22, 2010 at 06:11:02AM -0700, Greg KH wrote:
> On Tue, Jun 22, 2010 at 01:58:12PM +0100, Sid Boyce wrote:
> > I have an application using the on-board sound card mic which should
> > send it's data to the USB card for relay to a Sofweare Defined Radio
> > as 2 quadrature signals digital (I/Q) for transmission.
> > On the receiving side it can take data from the Radio at up to 192K
> > sample rate --> program --> Speaker on the on-board sound card -
> > that works fine.
> > Transmit fails, dmesg output with 48K sample rate set is:-
> > [509686.177169] ALSA sound/usb/clock.c:214: 6:2:3: endpoint lacks
> > sample rate attribute bit, cannot set.
> > [509686.187920] ALSA sound/usb/clock.c:214: 6:2:1: endpoint lacks
> > sample rate attribute bit, cannot set.
>
> Looks like your device does not support this :(
>
> Have you asked on the alsa mailing list?

Yes, please post this on the ALSA list, and also provide the full output
of "lsusb -v" with the device connected.

Thanks,
Daniel
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