I don't know about bsd, but linux the serial driver can use DTR/CTS flow
control instead of the usual RTS/CTS. This is usefull only when using the
serial port in rs-232 mode (that's what pcs and most modems use). When
doing a mac<->mac connection rs-232 isn't used. I don't recall the name of
the serial protocall mac uses, but I do know it uses twisted pair and is much,
much faster.

Just a tidbit of info...
Phil Frost

On Thu, Jul 26, 2001 at 03:57:15PM -0700, Henry B. Hotz wrote:
> At 9:21 AM -0700 7/26/01, Michael Wolfson wrote:
> 
> More recent scuttlebut on this list is that serial ports don't work 
> right on macppc.  I believe the problem is how the handshaking/status 
> lines are handled rather than "ordinary" data transfer.