From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: framebuffer ioctl Date: Tue, 7 Sep 2004 12:01:39 -0400 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <9e473391040907090125be532a@mail.gmail.com> References: <413A3735.9E7D2F11@orpatec.ch> <413B4925.5000706@comcast.net> <20040906184306.GA29544@guug.org> <9e47339104090612086149bfd7@mail.gmail.com> <20040906192400.GB29544@guug.org> <9e47339104090612334b3623ee@mail.gmail.com> <413DD83D.7B9F5D92@orpatec.ch> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1C4iPl-0001Ez-Ox for linux-fbdev-devel@lists.sourceforge.net; Tue, 07 Sep 2004 09:01:49 -0700 Received: from rproxy.gmail.com ([64.233.170.196] helo=mproxy.gmail.com) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.34) id 1C4iPi-0004bV-0G for linux-fbdev-devel@lists.sourceforge.net; Tue, 07 Sep 2004 09:01:48 -0700 Received: by mproxy.gmail.com with SMTP id 77so193973rnl for ; Tue, 07 Sep 2004 09:01:39 -0700 (PDT) In-Reply-To: <413DD83D.7B9F5D92@orpatec.ch> Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="iso-8859-1" To: linux-fbdev-devel@lists.sourceforge.net mesa-solo is under the "fbdev/DRI Environment" link at mesa3d.sf.net. miniglx is a small glx layer that runs on top of mesa-solo. Summary of the OLS discussions: http://lkml.org/lkml/2004/8/2/111 Here is the mode setting proposal, it's somewhere in the fbdev archives but I can't find it At OLS we talked about a system like this: 1) user owns graphics devices 2) user sets mode with string (or similar) format using ioctl common to all drivers. 3) driver is locked to prevent multiple mode sets 4) common code takes this string and does a hotplug event with it. 5) hotplug event runs root context in user space=20 6) mode is decoded and verified, this may involve a little process that maintains the DDC database and reads a file of legal modes. Other schemes are possible. 7a) mode is set using VBIOS and vm86, signal driver mode is set 7b) the register values needed to set the mode are passed into a root priv ioctl. 8) driver is unlocked. In this model all of the verification happens in user space. If you want to set modes other than the ones from DDC you have to add them to the config file. There is no need for DDC support and mode verification in the kernel. To give credit this is Alan Cox's design. On Tue, 07 Sep 2004 17:48:13 +0200, Otto Wyss wrote: > Jon Smirl wrote: > > > > > > Teach him about mesa-solo and he won't want to extend fbdev. > > > > I coudln't find much useful information about mesa-solo, is it the same > as miniglx? Is there any link? >=20 > > > What about the new graphics interface that will unify > > > fbdev/drm you talk about in kernel summit? > > > > Is there anyone who could write a resum=E9e what's talked and decided > about framebuffer at the summit? Just send it to me (i.e. plain text) > and I'll put it onto the web in the document section. >=20 > > > -otto > Hi Otto, is that me or is that you ;-) >=20 >=20 >=20 > O. Wyss >=20 > -- > See a huge pile of work at "http://wyodesktop.sourceforge.net/" >=20 > ------------------------------------------------------- > This SF.Net email is sponsored by BEA Weblogic Workshop > FREE Java Enterprise J2EE developer tools! > Get your free copy of BEA WebLogic Workshop 8.1 today. > http://ads.osdn.com/?ad_id=3D5047&alloc_id=3D10808&op=3Dclick > _______________________________________________ > Linux-fbdev-devel mailing list > Linux-fbdev-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel >=20 --=20 Jon Smirl jonsmirl@gmail.com ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click