From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265568AbUBBHux (ORCPT ); Mon, 2 Feb 2004 02:50:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265576AbUBBHux (ORCPT ); Mon, 2 Feb 2004 02:50:53 -0500 Received: from postfix3-1.free.fr ([213.228.0.44]:38820 "EHLO postfix3-1.free.fr") by vger.kernel.org with ESMTP id S265568AbUBBHuw (ORCPT ); Mon, 2 Feb 2004 02:50:52 -0500 From: Duncan Sands To: Jonas Diemer , unlisted-recipients:;;;""@paldrick.free.fr;, ""@pop.free.fr (no To-header on input) Illegal-Object: Syntax error in To: address found on vger.kernel.org: To: unlisted-recipients:;""@paldrick.free.fr ^-missing end of address Illegal-Object: Syntax error in To: address found on vger.kernel.org: To: unlisted-recipients:;""@paldrick.free.fr ^-missing end of address Subject: Re: Which interface: sysfs, proc, devfs? Date: Mon, 2 Feb 2004 08:50:48 +0100 User-Agent: KMail/1.5.4 Cc: linux-kernel@vger.kernel.org References: <20040129222813.3b22b2c8.diemer@gmx.de> <20040202032514.GB20534@kroah.com> <20040202075944.522464db.diemer@gmx.de> In-Reply-To: <20040202075944.522464db.diemer@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200402020850.48993.baldrick@free.fr> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Greg KH wrote: > > Yet you want to do asynchronous support with sysfs? How would that > > work? > > What kind of device are you writing a driver for? > > It is not firmware uploading only. Once the firmware is uploaded, I will > communicate with that device. It is a ezusb microcontroller controlling > several relais, adc and dac. usbfs certainly supports asynchronous communication (sending an urb and picking up the result at some convenient later time). I don't know if libusb supports it, but in any case it is easy to use usbfs directly. Duncan.