From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S275940AbTHONdN (ORCPT ); Fri, 15 Aug 2003 09:33:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S275946AbTHONdN (ORCPT ); Fri, 15 Aug 2003 09:33:13 -0400 Received: from mail.jlokier.co.uk ([81.29.64.88]:36481 "EHLO mail.jlokier.co.uk") by vger.kernel.org with ESMTP id S275940AbTHONdM (ORCPT ); Fri, 15 Aug 2003 09:33:12 -0400 Date: Fri, 15 Aug 2003 14:33:07 +0100 From: Jamie Lokier To: Vojtech Pavlik Cc: Andries Brouwer , Neil Brown , linux-kernel@vger.kernel.org Subject: Re: Input issues - key down with no key up Message-ID: <20030815133307.GH15911@mail.jlokier.co.uk> References: <16188.27810.50931.158166@gargle.gargle.HOWL> <20030815094604.B2784@pclin040.win.tue.nl> <20030815105802.GA14836@ucw.cz> <20030815123641.GA7204@win.tue.nl> <20030815130450.GF15911@mail.jlokier.co.uk> <20030815131040.GA15706@ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030815131040.GA15706@ucw.cz> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Vojtech Pavlik wrote: > > Several laptops seem to send a key down event 3, 5 or very many times > > in response to a single press. > > One way this could be handled fairly nicely (although the method is > maybe too clever to be good) would be to leave the autorepeat up to the > sw, ignore any successive presses without a release and watch whether > the keyboard will start autorepeating the key after 250 msec. If it does > not, then force the key to be released even if we got no release > scancode. Perhaps it's too clever, because some users configure the repeat delay in their BIOS to longer than 250ms. It is fine if you are able to reliably program the keyboard to use the 250ms delay, though. Aren't there some keys which report DOWN and UP but which don't repeat? The PS/2 keyboard protocol is utterly absurd. -- Jamie