From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Bombe Subject: Re: [PATCH 1/1] Userspace I/O (UIO): Add support for userspace DMA (corrected) Date: Sat, 27 Dec 2008 01:49:28 +0100 Message-ID: <20081227004928.GA28225@case.infernal> References: <208aa0f00812031751n27a75d21h8747054651639463@mail.gmail.com> <20081211003340.GB3078@local> <20081225123004.GA13640@8bytes.org> <20081225152014.GA3079@local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20081225152014.GA3079@local> Sender: linux-kernel-owner@vger.kernel.org To: "Hans J. Koch" Cc: Joerg Roedel , Edward Estabrook , linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, gregkh@suse.de, edward.estabrook@gmail.com, edward_estabrook@agilent.com List-Id: linux-api@vger.kernel.org On Thu, Dec 25, 2008 at 04:20:15PM +0100, Hans J. Koch wrote: > On Thu, Dec 25, 2008 at 01:30:04PM +0100, Joerg Roedel wrote: > > I like that idea of a seperate directory in sysfs. How about allocating > > DMA memory by creating files in this directory. > > Nice idea, but AFAICT sysfs doesn't support creating files from userspace. For that there is configfs.