From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932223AbZHJQbg (ORCPT ); Mon, 10 Aug 2009 12:31:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932204AbZHJQbf (ORCPT ); Mon, 10 Aug 2009 12:31:35 -0400 Received: from cantor.suse.de ([195.135.220.2]:36804 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932160AbZHJQbe (ORCPT ); Mon, 10 Aug 2009 12:31:34 -0400 Date: Mon, 10 Aug 2009 09:28:26 -0700 From: Greg KH To: "Emilio G. Cota" Cc: Martyn Welch , linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org, Sebastien Dugue Subject: Re: [patch 2/5] Staging: vme: add VME userspace driver Message-ID: <20090810162826.GA27912@suse.de> References: <20090803205657.964064732@mini.kroah.org> <20090803210116.GC28430@kroah.com> <20090808232259.GA29303@braap.org> <20090809121715.GA3884@braap.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090809121715.GA3884@braap.org> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Aug 09, 2009 at 02:17:16PM +0200, Emilio G. Cota wrote: > (oops, just correcting Sebastien's e-mail address) > > Emilio G. Cota wrote: > > I remember we had a look at the vmelinux interface, but it really > > was so limited that we decided to get rid of it altogether. Do you > > really think it's worth bringing it back to life? Since it's never > > been merged into the kernel, why don't we just get it right this time > > and forget about it? > > > > Instead of using that we implemented a heretic IOCTL-based > > interface for user-space; at least with it you could create a > > driver (with no interrupt support) for a device in user-space. Why not just use the UIO interface instead of creating yet-another-kernel/user-api? Will that interface not work for what you want to use here? thanks, greg k-h