From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mauro Carvalho Chehab Subject: Samsung series 5 ultra keyboard Date: Sat, 27 Jul 2013 10:11:53 -0300 Message-ID: <20130727101153.6a3ece65@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mailout3.w2.samsung.com ([211.189.100.13]:63093 "EHLO usmailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751721Ab3G0NWA (ORCPT ); Sat, 27 Jul 2013 09:22:00 -0400 Received: from uscpsbgm1.samsung.com (u114.gpu85.samsung.co.kr [203.254.195.114]) by usmailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MQL00GKTJBXU520@usmailout3.samsung.com> for linux-input@vger.kernel.org; Sat, 27 Jul 2013 09:11:57 -0400 (EDT) Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: linux-input@vger.kernel.org, Mauro Carvalho Chehab Hi Dmitry, I received a new notebook those days that has an extra feature of a "Fn Lock" key. When this key is pressed, it produces a scan code 0xa8, and the direction keys (and other keys) start to produce different codes. When pressed again, it produces a scan code 0xa9, and the keys return to their normal behavior. The input layer doesn't currently produce any EV_KEY event for those two scancodes. It produces just EV_MSC events (and, of course, EV_SYN). I was wandering that the better would be to have a LED indicator to track this, and maybe have two new keycodes, like KEY_FN_LOCK_ON and KEY_FN_LOCK_OFF. This way, some userspace program, like mate-lockkeys-applet could be presenting not only the CAPS LOCK indicator, but also the FN LOCK indicator. Do you think it would be doable? FYI, this is how this keyboard identifies itself: $ cat /sys/class/input/event3/device/uevent PRODUCT=11/1/1/ab41 NAME="AT Translated Set 2 keyboard" PHYS="isa0060/serio0/input0" PROP=0 EV=120013 KEY=500f02000403 3803078f870d001 feffffdffbefffff fffffffffffffffe MSC=10 LED=7 MODALIAS=input:b0011v0001p0001eAB41-e0,1,4,11,14,k71,72,73,74,75,76,77,79,7A,7B,7C,7D,7E,7F,80,8C,8E,8F,94,95,96,9B,9C,9D,9E,9F,A3,A4,A5,A6,AC,AD,B7,B8,B9,C0,C1,CA,D9,E0,E1,E2,E3,EC,EE,ram4,l0,1,2,sfw I'm not sure if the PRODUCT there is unique, and if it could be used to add this kind of extra feature to the input subsystem (or if it would be just fine to add those extra features at the standard AT keyboard driver, although I personally don't like this idea, as other keyboards might be using scancodes 0xa8/0xa9 for other meanings). What do you think? Thanks! Mauro