Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161324AbWJKUvL (ORCPT ); Wed, 11 Oct 2006 16:51:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161333AbWJKUvL (ORCPT ); Wed, 11 Oct 2006 16:51:11 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:64527 "HELO iolanthe.rowland.org") by vger.kernel.org with SMTP id S1161324AbWJKUvK (ORCPT ); Wed, 11 Oct 2006 16:51:10 -0400 Date: Wed, 11 Oct 2006 16:51:09 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Pete Zaitcev cc: Pavel Machek , , Paolo Abeni , , Subject: Re: [linux-usb-devel] [PATCH] usbmon: add binary interface In-Reply-To: <20061011134351.0c79445a.zaitcev@redhat.com> Message-ID: 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: 1146 Lines: 26 On Wed, 11 Oct 2006, Pete Zaitcev wrote: > On Wed, 11 Oct 2006 19:44:43 +0000, Pavel Machek wrote: > > > Does it mean text interface is now deprecated? Or perhaps ioctl should > > be added to text interface too? Or maybe we do not need binary > > interface if we allow resizing on text interface? > > I haven't reviewed Paolo's patch yet, but with that in mind: > - No, text is not deprecated yet. That is only possible when a simplified > command-line tool is written and distributed (e.g. usbmon(8)). > - No, I do not think an ioctl in debugfs or a text API is a good idea. > - Resizing on text interface magnifies sprintf contribution to CPU burn, > so once we have the binary one, there's only disadvantage and > no advantage in implementing that. Would relayfs be a better choice than debugfs for exporting potentially large quantities of binary data? Alan Stern - 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/