Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262549AbVBCQD6 (ORCPT ); Thu, 3 Feb 2005 11:03:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262523AbVBCQD5 (ORCPT ); Thu, 3 Feb 2005 11:03:57 -0500 Received: from ida.rowland.org ([192.131.102.52]:6660 "HELO ida.rowland.org") by vger.kernel.org with SMTP id S263720AbVBCQDb (ORCPT ); Thu, 3 Feb 2005 11:03:31 -0500 Date: Thu, 3 Feb 2005 11:03:29 -0500 (EST) From: Alan Stern X-X-Sender: stern@ida.rowland.org To: Aleksey Gorelov cc: mdharm-usb@one-eyed-alien.net, Subject: Re: your mail In-Reply-To: <5F106036E3D97448B673ED7AA8B2B6B301B3CD73@scl-exch2k.phoenix.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: 1026 Lines: 29 On Wed, 2 Feb 2005, Aleksey Gorelov wrote: > Hi Matt, Alan, > > Could you please tell me (link would do) why it makes default > delay_use=5 > really necessary (from the patch below)? > https://lists.one-eyed-alien.net/pipermail/usb-storage/2004-August/00074 > 7.html > > It makes USB boot really painfull and slow :( > > I understand there should be a good reason for it. I've tried to find > an answer in > archives, without much success though. Lots of devices don't need that delay, but enough of them do that we decided to add it. The value of 5 seconds was more or less arbitrary; it was long enough for every device we could test and it didn't seem _too_ long. Maybe 1 second would be long enough -- we just didn't know so we were conservative. 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/