Hi,

I posted patches a couple of weeks ago to enable high-speed mode
(greater than 115200 bps) on the Cyberserial PCI serial and combo
cards.

This is considerably simpler than my earlier attempt: all the
high-speed clocks are enabled at attachment, so the com stuff doesn't
even need to know about it. This seems to work fine from 300 bps to
230400 bps. (I can't easily test the 921600 bps speed.)

  ftp://ftp.netbsd.org/pub/NetBSD/misc/fredb/cyberserial.diff

A benefit, is that the 4- and 8-port cards also get supported. I
originally avoided that, because the all the ports on the card share
the clock mode bit, so permission to change the speed on on one port
would give leverage to manipulate the others. That whole issue is
avoided by using the fast clock for all the ports, all the time.

These cards are ubiquitious and inexpensive, so it'll be great to see
these supported by NetBSD. Comments?

Frederick