lkml.org 
[lkml]   [2001]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Linux 2.4.5-ac7
Hi!

> > How about ISA USB host controllers?
>
> Those, unfortunately, do not exist. I was shopping for one
> in vain for a long time. One formiddable difficulty is that
> USB bandwidth is larger than ISA, so the only feasible way
> to make a HC is to have all TD's in its onboard memory,
> as in VGA.

USB is 1.2MB/sec while 8-bit ISA is 4MB/sec (memory-mapped).

...and OHCI does use board memory, anyway.
Pavel
--
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:54    [W:0.056 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site