*BSD News Article 36704


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From: lirwin@admin1101dp.ucr.edu (Loren Irwin)
Newsgroups: comp.os.386bsd.questions
Subject: Re: V.34 External Modems and Enhanced Serial I/O Cards
Followup-To: comp.sys.ibm.pc.hardware.comm,comp.os.386bsd.questions,comp.os.386bsd.misc
Date: 8 Oct 1994 04:35:46 GMT
Organization: University of California, Riverside
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Mike Olson (olson@cs.odu.edu) wrote:


: I am looking at High Speed Modems (V.34) and was wonder which ones work   
: best with FreeBSD. Does it matter which modem I get (I know it matters for
: connection speed and accuracy but I'm refering to how the OS deals with 
: the data transfer)

: What I am thinking about getting is an external USR Sportster or Courier
: and a Hayes ESP Enhanced Serial I/O card. (Like a 16540 with a 1K buffer)
: Will that even work under FreeBSD or am I better off getting a regular 
: 16540 I/O card or internal Modem.

: Any Comments? Suggestions?

: Thank You,
:         Michael Olson
:         olson@cs.odu.edu
:         
: Please cc:olson@cs.odu.edu if possible as I need to get this information
: as soon as possible (must buy now sort of thing). If answer is only 
: mailed to me I will post it to these groups.

The ESP card will work--but only in 16550 mode.  I tried it
with the 1k buffer enabled, and it rather annoyed FreeBSD.

I didn't expect it would help any in FreeBSD, but I got it
to use in the enhanced mode under Windows, and 16550 mode
under FreeBSD.  The problem is that if you run windows
and then do a soft reboot and run FreeBSD, you're hosed.  It
will be in the enhanced mode. It seems that you have to
reconfigure the card and hard reset. I don't think that it's
worth the hassle.

Loren