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Date:      06 Nov 2002 17:46:00 +1030
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        Robert Watson <rwatson@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/conf majors
Message-ID:  <1036566961.55376.89.camel@chowder.localdomain>
In-Reply-To: <91690.1036562773@critter.freebsd.dk>
References:  <91690.1036562773@critter.freebsd.dk>

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On Wed, 2002-11-06 at 16:36, Poul-Henning Kamp wrote:
> >  Requested by:   doconnor@gsoft.com.au
> 
> Uhm, why do we need a special driver for this ?  I'm running RS-485 using
> the sio(4) driver just fine ?

Because it's difficult to set the parity bit manually using sio.

(Well, it's impossible without patches)

If you run multidrop where the parity bit is used as an address marker
(to make coding microprocessor firmware easier) then you need to be able
to set the parity bit at will.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 9A8C 569F 685A D928 5140  AE4B 319B 41F4 5D17 FDD5


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