Re: 2 USB2 HS Full BW Iso Stream Problem
- From: Tim Roberts <timr@xxxxxxxxx>
- Date: Fri, 28 Sep 2007 20:45:07 -0700
"Tom Udale" <-> wrote:
"The USB requires that no more than 90% of any frame be allocated for
periodic (isochronous and interrupt) transfers for full-speed endpoints.
High-speed endpoints can allocate at most 80% of a microframe for periodic
transfers."
One very plausible answer to this problem is to switch to a bulk pipes. The
fact is that USB 2 nearly makes isochronous pipes obsolete. Many of the
capture devices we're doing now use bulk pipes.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
.
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