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/
This archive was generated by hypermail 2b29 : Thu Jun 07 2001 - 21:00:36 EST