Subject: Re: proposed change to ugen to enable USRP to work
To: Joanne M Mikkelson <firstname.lastname@example.org>
From: Iain Hibbert <email@example.com>
Date: 05/09/2006 10:12:18
On Tue, 8 May 2006, Joanne M Mikkelson wrote:
> The lack of write support in ugen isn't the only difficulty with
> using isochronous transfers. The ehci driver does not implement
> isochronous transfers at all, so that would have to addressed in
> addition to using the code from the PR.
Actually, I have been working with isochronous transfers lately and there
seem to be problems in the current uhci support also.
> and perhaps you were thinking there would a different behavior for
> mmapped buffers in ugen,
Yes, was just throwing up the concept really, since your proposal made no
mention, and it seems that it would be more efficient for a continuous
data stream which I think is what you get with USRP (and why they used it
> but I don't think we want to force users of
> continuous read mode to keep up or risk losing data.
well you kind of have to plan for that anyway since buffer space is