From owner-freebsd-hackers  Tue May  9 13:19:28 1995
Return-Path: hackers-owner
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.10/8.6.6) id NAA24670
          for hackers-outgoing; Tue, 9 May 1995 13:19:28 -0700
Received: from easynet.com (easyr.easynet.net [198.67.38.6])
          by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id NAA24662
          for <freebsd-hackers@freebsd.org>; Tue, 9 May 1995 13:19:25 -0700
Received: by easynet.com (Smail3.1.28.1 #7)
	id m0s8vkH-000rdMC; Tue, 9 May 95 13:19 WET DST
Message-Id: <m0s8vkH-000rdMC@easynet.com>
From: brian@MediaCity.Com (Brian Litzinger)
Subject: A question of downloading device drivers
To: freebsd-hackers@FreeBSD.org
Date: Tue, 9 May 1995 13:19:05 -0700 (PDT)
X-Mailer: ELM [version 2.4 PL23]
Content-Type: text
Content-Length: 565       
Sender: hackers-owner@FreeBSD.org
Precedence: bulk

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-(

    download the microcode via a write to a special device

    download the microcode via an set of ioctls.

    do a mixture of the above.

    Use something I haven't thought of, but you have.

Any pointers would be appreciated.

Brian Litzinger
brian@easynet.com