Re: Audio I/O parameters

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On Fri, 19 Jul 2013, James Stone wrote:

> > The questions now are:
> >
> >         Why are the same requests sent over and over again?
> >
> >         Why does the ALSA driver attempt to set the clock frequency
> >         while the clock is actively in use?
> >
> >         Has this behavior changed since the 3.5 kernel?
> >
> 
> Well, I think these requests may correspond to the lights flashing on
> and off on the front of the device. When starting the device in 3.5 at
> 256 frames/period (duplex), the lights flash on and off 2 times, in
> the current patched 3.8 version I have been using, the device lights
> flash on and off 4 times before starting jack with exactly the same
> settings - so it seems for some reason, the requests are going through
> multiple times on the 3.8 kernel but not on 3.5. I will send a 3.5
> usbmon trace of a successful start off list (plus the same for 3.8?)
> if it would be useful.

I don't know -- it's up to Clemens.

Alan Stern

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