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Date:      Thu, 25 May 2000 13:31:01 -0700
From:      Mike Smith <msmith@freebsd.org>
To:        "David Clarke" <djclarke@cm-solutions.co.nz>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: SUNIX PCI Parallel Card with FreeBSD 4.0 
Message-ID:  <200005252031.NAA00801@mass.cdrom.com>
In-Reply-To: Your message of "Fri, 26 May 2000 08:27:54 %2B1200." <004601bfc687$baead520$0201a8c0@eskimo.cm-solutions.co.nz> 

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> 
> -----Original Message-----
> 
> >> I was told that there wasn't any support for PCI parallel cards.  And
> >> that wasn't any active work on support PCI.  The recommendation was and
> >> ISA card or a USB->Parallel cable.  They cost around $25.
> >
> >OTOH, supporting this card would be pretty straightforward if it's really
> >just a "normal" printer port with a PCI bus interface.
> 
> >From the docs that came with the card...
> Parallel Chipset: SIN1888, Hardware FIFO are 32 bytes
> Compatible chips: ACC3203, ST-78C36 and HT6535
> IEEE standard: ECP/EPP/SPP/BPP (PS-II) interface
> Max speed: Up to 21.4MB/sec
> 
> >From the linux setup info, they seem to imply that the ports on the card can
> be used simply by telling the driver code that the port exists at IO address
> 0xd400 instead of the usual 0x378, for example, and is used in a polled (no
> IRQ) mode.
> 
> Can we specify this in the Kernel config file ?.  I thought we could in an
> earlier version of FreeBSD, but version 4.0 does not show this in LINT.

Sort of; it's not easy to get the information you need.  It'd be easier 
to write a PCI bus attachment for the 'ppc' driver; if you can get 
documentation on the card and a sample to someone, it could probably be 
done in a few days.

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




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