Date: Fri, 17 Mar 1995 21:11:31 -0500 (EST) From: Peter Dufault <dufault@hda.com> To: brian@MediaCity.Com (Brian Litzinger) Cc: freebsd-hackers@FreeBSD.org Subject: Re: A question of downloading device drivers Message-ID: <199503180211.VAA08825@hda.com> In-Reply-To: <m0s8vkH-000rdMC@easynet.com> from "Brian Litzinger" at May 9, 95 01:19:05 pm
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Brian Litzinger writes: > > I'm about to implement downloading the microcode for the talisman > MPEG decoder rather than relying on it being in an EPROM on the card. > > I'm looking for any guidance, examples, etc, on a right way to do > this. > > I could > > include the microcode as a giant static array in the device driver 8-( This is the last resort and isn't needed in this case. > download the microcode via a write to a special device No, > download the microcode via an set of ioctls. do this. You'll have a special program to do the download anyway, and god knows what someone might otherwise dd to your microcode to see what happens; probably the Adaptec firmware. Peter -- Peter Dufault Real Time Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936 dufault@hda.com Fax: 508 433 5267
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