From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261693AbVGDWF1 (ORCPT ); Mon, 4 Jul 2005 18:05:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261705AbVGDWF1 (ORCPT ); Mon, 4 Jul 2005 18:05:27 -0400 Received: from twilight.ucw.cz ([81.30.235.3]:42887 "EHLO suse.cz") by vger.kernel.org with ESMTP id S261693AbVGDWFT (ORCPT ); Mon, 4 Jul 2005 18:05:19 -0400 Date: Tue, 5 Jul 2005 00:05:32 +0200 From: Vojtech Pavlik To: federico Cc: linux-kernel@vger.kernel.org Subject: Re: setkeycodes, sysrq, and USB keyboard Message-ID: <20050704220532.GA2086@ucw.cz> References: <42C9AD67.5050808@inwind.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42C9AD67.5050808@inwind.it> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 04, 2005 at 11:43:03PM +0200, federico wrote: > hi all, > > i have a problem: i got a white Apple usb keyboard, but this keyboard > doesn't have PrintScr nor SysRq. > i read in Documentation/sysrq.txt how to change the SYSRQ scancode. > i launched showkey and acknowledged that R_Alt+F13 is 100,183 => 64b7. > i ran > > # setkeycodes 64b7 84 > KDSETKEYCODE: No such device > failed to set scancode b7 to keycode 84 > > i'm on a gentoo-vanilla 2.6.13_rc1 with kbd-1.12-r5. (or on > 2.6.11-gentoo-r9 which produces the same result) > > here's some relevant output from strace: > > open("/dev/tty", O_RDWR) = 3 > ioctl(3, KDGKBTYPE, 0xbffdfcb7) = 0 > ioctl(3, KDSETKEYCODE, 0xbffdfd20) = -1 ENODEV (No such device) > dup(2) = 4 > fcntl64(4, F_GETFL) = 0x8001 (flags O_WRONLY|O_LARGEFILE) > close(4) = 0 > ... > write(2, "KDSETKEYCODE: No such device\n", 29KDSETKEYCODE: No such device > ) = 29 > ... > write(2, "failed to set scancode 64b7 to k"..., 42failed to set scancode > 64b7 to > keycode 84 > ) = 42 > > if anyone has a possible solution i really appreciate. > ciao! Sorry, you can't use 'setkeycodes' on USB keyboards. They don't use the PS/2 protocol, and hence it doesn't make sense. -- Vojtech Pavlik SuSE Labs, SuSE CR