From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: [ANNOUNCE]: VM86 Daemon Date: Mon, 31 Mar 2003 20:01:06 -0800 (PST) Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <20030401040106.65664.qmail@web14906.mail.yahoo.com> References: <1049158940.1059.21.camel@localhost.localdomain> Mime-Version: 1.0 Return-path: Received: from web14906.mail.yahoo.com ([216.136.225.58]) by sc8-sf-list1.sourceforge.net with smtp (Exim 3.31-VA-mm2 #1 (Debian)) id 190CxO-0006pP-00 for ; Mon, 31 Mar 2003 20:01:06 -0800 In-Reply-To: <1049158940.1059.21.camel@localhost.localdomain> Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Antonino Daplas Cc: Kendall Bennett , Linux Fbdev development list , DirectFB-devel --- Antonino Daplas wrote: > A new device seems more powerful and more generic. > Generic in a sense > that other subsystems besides fbdev can use it to > access the BIOS or The new device is going to need to sort out multiple adapters. Using /dev/fbX avoids that problem. You'll also be able to get the /dev/fb code into the kernel. Getting a driver in that creates /dev/vm86 is going to be harder. I'm not clear on what /dev/vm86 does. Why couldn't the radeon driver exec vm86d with a parameter of /dev/fb0. vm86d would then open/IOCTL the radeon driver to identify the PCI device and what actions are needed. After it resets and gets the EDID data it would IOCTL them back into /dev/fb0 and exit. You need to know which PCI device so that you can set up the right VBIOS ROM. Each adapter would get it's own vm86d, but they wouldn't hang around long. I haven't played with this yet but the vm86d should use the new klibc. That would allow it to run early in the boot process. The driver could then exec it if needed. It would also make vm86d tiny. The Radeon and Rage128 cards need a reset if they are reporting zero VRAM. ===== Jon Smirl jonsmirl@yahoo.com __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://platinum.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/