From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 13 Feb 2002 20:50:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 13 Feb 2002 20:50:42 -0500 Received: from 12-224-37-81.client.attbi.com ([12.224.37.81]:40970 "HELO kroah.com") by vger.kernel.org with SMTP id ; Wed, 13 Feb 2002 20:50:22 -0500 Date: Wed, 13 Feb 2002 17:46:23 -0800 From: Greg KH To: Sanjeev Lakshmanan Cc: linux-kernel@vger.kernel.org Subject: Re: USB device driver Message-ID: <20020214014623.GA26045@kroah.com> In-Reply-To: <20020213081956.12896.qmail@web14407.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020213081956.12896.qmail@web14407.mail.yahoo.com> User-Agent: Mutt/1.3.26i X-Operating-System: Linux 2.2.20 (i586) Reply-By: Wed, 16 Jan 2002 23:41:28 -0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 13, 2002 at 12:19:56AM -0800, Sanjeev Lakshmanan wrote: > Hi all > > I need to develop a USB device driver for a custom > made switch. I shall give a brief description. > > The switch has four RJ 45 connectors for ethernet > cables and it needs to exchange data packets of size > 8 bytes every .5 seconds. The Transmit ethernet > port(1,2,3,4) and Receive ethernet port(1,2,3,4) > need to be selected for each transfer and the data > packet which is to be sent out and received on those > ports changes accordingly. I don't see why you need a USB driver for a switch. Where is USB in the above description of your device? > Please let me know how I can start off writing the > code for this driver. > Also please let me know if there are any SIMILAR > device drivers already developed and available. > > I am aware of the files > usr/src/linux/drivers/usb/usb.* > but as I have no prior experience with device > drivers, I am unable to start off. I think your company needs to hire some people with device driver experience :) > I have not yet subscribed to the list. PLease reply > to survivor_eagles@yahoo.com > > Regards, > Sanjeev. Why did you post this to lkml and the linux-usb-users mailing lists from two different accounts, using two different names? Good luck, greg k-h