isochronous support broken?

Alistair John Strachan s0348365 at sms.ed.ac.uk
Tue Jan 10 07:52:12 EST 2006


On Sunday 08 January 2006 21:48, matthieu castet wrote:
> Hi Duncan,
>
> Duncan Sands wrote:
> > Hi Alistair,
> >
> >
> > -ENOSPC         This request would overcommit the usb bandwidth reserved
> >                 for periodic transfers (interrupt, isochronous).
> >
> > Interesting.  What kernel version is this (I noticed some bandwidth
> > changes going into 2.6.15)?  Do you have other iso devices connected at
> > the same time?
>
> For me (eagle) with the default configuration of usbatm I use 121% of
> the bandwidht [1]
>
> I need to reduce the number of iso packet via module parameter.
>
> Matthieu

Have we come to any conclusions here? Is this a kernel bug or a bug in the 
speedtch driver?

-- 
Cheers,
Alistair.

'No sense being pessimistic, it probably wouldn't work anyway.'
Third year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.



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