From mboxrd@z Thu Jan 1 00:00:00 1970 From: "seetaram Tekkalakot" Subject: Using VESA BIOS in Framebuffer driver Date: Wed, 14 May 2003 12:20:29 +0800 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <20030514042029.24447.qmail@india.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from 205-158-62-158.outblaze.com ([205.158.62.158] helo=spf1.us.outblaze.com) by sc8-sf-list1.sourceforge.net with smtp (Exim 3.31-VA-mm2 #1 (Debian)) id 19Fnkp-0003gi-00 for ; Tue, 13 May 2003 21:20:35 -0700 Content-Disposition: inline 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" To: linux-fbdev-devel@lists.sourceforge.net Hi Guys I am developing a framebuffer driver for my PLC 69030 video card. I have gone through the Source code of the Sample framebuffer driver and i have some clarifications needed. Please clarify my doubts. 1.How does the Frame buffer driver Switches graphics modes, i mean how does it initializes the graphics system say in 640*480*256 mode and switch to say 800*600*24 mode. Does it depend on VESA BIOS calls to do this ? Let me know. 2.How does the framebuffer driver achieve paging ? Say my display memoy is 4mb and i want divide it into 4 pages then how will i do this ? Please clarify my doubts Thanks and regards Seetaram -- ______________________________________________ http://www.india.com Now with POP3/SMTP access for only US$14.95/yr Powered by Outblaze ------------------------------------------------------- Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara The only event dedicated to issues related to Linux enterprise solutions www.enterpriselinuxforum.com