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To: Julian Elischer <julian@whistle.com>
cc: hackers@FreeBSD.ORG, bde@FreeBSD.ORG
Subject: Re: serial ports at 230k 
In-reply-to: Your message of "Thu, 06 Feb 1997 18:05:36 PST."
             <32FA8DF0.3F54BC7E@whistle.com> 
Date: Thu, 06 Feb 1997 18:16:40 -0800
From: Paul Traina <pst@jnx.com>
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  From: Julian Elischer <julian@whistle.com>
  Subject: Re: serial ports at 230k
  Paul Traina wrote:
  > 
  > Does anyone have any experience with running 16550A's at 230kbps under Free
>>BSD?
  > Yes, I know, the driver doesn't support it currently, but has anyone played
>>?
  
  yes 
  I've played but the hard part is getting the hardware..

Getting?  I haven't seen mention of special hardware in /any/ docs. Sigh.
  
  you need to add a second "mode" to sio.c
  that allow it to use a second baud rate table
  and somewhere you have to kick the io ports of the device to 
  do whatever is needed to make it run in turbo mode..
  this is usually machine dependent.