Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261352AbTEKW1F (ORCPT ); Sun, 11 May 2003 18:27:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261365AbTEKW1F (ORCPT ); Sun, 11 May 2003 18:27:05 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:49045 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S261352AbTEKW1E (ORCPT ); Sun, 11 May 2003 18:27:04 -0400 Subject: Re: [bug 2.5.69] xirc2ps_cs, irq 3: nobody cared, shutdown hangs From: Alan Cox To: David Woodhouse Cc: Jeff Garzik , Zwane Mwaikambo , Daniel Ritz , Linux Kernel Mailing List , Andrew Morton In-Reply-To: <1052690907.15307.10.camel@imladris.demon.co.uk> References: <200305111647.32113.daniel.ritz@gmx.ch> <3EBE8768.4000007@pobox.com> <1052673649.29921.15.camel@dhcp22.swansea.linux.org.uk> <1052690907.15307.10.camel@imladris.demon.co.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1052689233.30506.1.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 11 May 2003 22:40:34 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 817 Lines: 21 On Sul, 2003-05-11 at 23:08, David Woodhouse wrote: > PCMCIA has varying pin length for the CD pins and hence gives you a few > milliseconds of warning before the card is _actually_ disconnected. Which is less than the worst case IRQ response time (or indeed on some PCs the worst case CPU hold off time for the PCI bus) > After that period of time has elapsed and the card is actually gone, you > _really_ don't want to be bitbanging its ports. > > > Its quite safe to do so. > > Not on all platforms. On all that matters it is safe, the others are unfixable anyway - 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/