forgot to mention:
vader:~# while sleep 0.05; do grep "Momentary freq"
/proc/asound/card1/stream0 >> out; done
vader:~# cat out | sort | uniq -c
1272 Momentary freq = 48000 Hz (0x6.0000)
7 Momentary freq = 48063 Hz (0x6.0200)
vader:~#
On Fri, Feb 22, 2008 at 6:46 PM, Adrian Stancu
<adrian.stancu.82@xxxxxxxxx> wrote:
> Yes!!! the feedback works correctly this way => perfect playback!
>
> what I had to do was:
> [...]
> f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff;
> f /= 8;
> if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) {
> spin_lock_irqsave(&subs->lock, flags);
> subs->freqm = f;
> [...]
>
> otherwise, the 'if' condition would still not be satisfied.
> Words can not describe how thankful I am about this one!
>
> Now, is there a way to incorporate this change into the driver without
> affecting functionality for other usb audio devices?
>
>
> On Fri, Feb 22, 2008 at 6:31 PM, Clemens Ladisch <clemens@xxxxxxxxxx> wrote:
>
>
> > Adrian Stancu wrote:
> > > According to dmesg, the device is running at high speed:
> > > usb 1-6: new high speed USB device using ehci_hcd and address 20
> > >
> >
> > > So, if I convert the freq using the high speed formula, I get a value
> > > within the acceptable range,
> >
> > No; the device is high speed, but it sends a full speed feedback value.
> >
> > Please try "subs->freqm = f / 8;"
> >
> >
> > The value quoted in your previous message was exactly 48000 Hz; please
> > check if it ever changes.
> >
> >
> > Regards,
> > Clemens
> >
>
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