Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752258AbXB1Qug (ORCPT ); Wed, 28 Feb 2007 11:50:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752320AbXB1Qug (ORCPT ); Wed, 28 Feb 2007 11:50:36 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:51774 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752258AbXB1Quf (ORCPT ); Wed, 28 Feb 2007 11:50:35 -0500 Date: Wed, 28 Feb 2007 16:50:05 +0000 (GMT) From: James Simmons To: Linux Frame Buffer Device Development cc: Peter Zijlstra , Linux Kernel Development , linux-mm@kvack.org, Paul Mundt , Geert Uytterhoeven Subject: Re: [Linux-fbdev-devel] [PATCH 2.6.20 1/1] fbdev, mm: hecuba/E-Ink fbdev driver In-Reply-To: <45a44e480702211522q6225d4fbx3f7d99fcef5fe93c@mail.gmail.com> Message-ID: References: <20070217104215.GB25512@localhost> <1171715652.5186.7.camel@lappy> <45a44e480702170525n9a15fafpb370cb93f1c1fcba@mail.gmail.com> <20070217135922.GA15373@linux-sh.org> <45a44e480702180331t7e76c396j1a9861f689d4186b@mail.gmail.com> <20070218235741.GA22298@linux-sh.org> <45a44e480702192013s7d49d05ai31e576f0448a485e@mail.gmail.com> <45a44e480702210855t344441c1xf8e081c82ece4e63@mail.gmail.com> <45a44e480702211522q6225d4fbx3f7d99fcef5fe93c@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 986 Lines: 21 > I'm not sure I understand. What the current implementation does is to > use host based framebuffer memory. Apps mmap that memory and draw to > that. Then after the delay, that framebuffer is written to the > device's memory. That's the scenario for hecubafb where the Apollo > controller maintains it's own internal framebuffer. > > When you say without the framebuffer, if you meant without the host > memory, then this method doesn't work. If you mean without the > device's internal memory, then yes, I think we can do that, because it > would be up to the driver to use the touched pagelist to then perform > IO as suitable for its device. I meant for it to work for non framebuffer devices. I realized that not such a great idea. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/