From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751434Ab1KPSvO (ORCPT ); Wed, 16 Nov 2011 13:51:14 -0500 Received: from oceanic.CalvaEDI.COM ([89.202.194.168]:38476 "EHLO oceanic.CalvaEDI.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751907Ab1KPSvK (ORCPT ); Wed, 16 Nov 2011 13:51:10 -0500 Message-ID: <4EC4064D.6010706@calvaedi.com> Date: Wed, 16 Nov 2011 19:51:57 +0100 From: John Hughes User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.16) Gecko/20111004 Icedove/3.0.11 MIME-Version: 1.0 To: Mattia Dongili CC: platform-driver-x86 , linux-kernel@vger.kernel.org Subject: [PATCH] to fix scancodes returned by sony-laptop driver Content-Type: multipart/mixed; boundary="------------030509090309030601060508" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------030509090309030601060508 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Fix scancodes returned by driver to match scancodes used to remap keys. (Before the patch FN/E returned scancode 0x1B, but to remap scancode 0x14 had to be used). --------------030509090309030601060508 Content-Type: text/x-patch; name="sony-scancode.patch" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="sony-scancode.patch" The scancodes returned by the sony-laptop driver for function keys did not match the scancodes used to remap keys. Also, since the scancode was sent to the input subsystem after the mapped keysym the /lib/udev/keymap utility was confused about which scancode to report for which keysym. This patch fixes the driver so the correct scancode is shown for each key. It also adds to the documentation a description of where to find the scancodes. Signed-off-by: John Hughes diff --git a/Documentation/laptops/sony-laptop.txt b/Documentation/laptops/sony-laptop.txt index 2bd4e82..0d5ac7f 100644 --- a/Documentation/laptops/sony-laptop.txt +++ b/Documentation/laptops/sony-laptop.txt @@ -17,6 +17,11 @@ subsystem. See the logs of acpid or /proc/acpi/event and devices are created by the driver. Additionally, loading the driver with the debug option will report all events in the kernel log. +The "scancodes" passed to the input system (that can be remapped with udev) +are indexes to the table "sony_laptop_input_keycode_map" in the sony-laptop.c +module. For example the "FN/E" key combination (EJECTCD on some models) +generates the scancode 20 (0x14). + Backlight control: ------------------ If your laptop model supports it, you will find sysfs files in the diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index bbd182e..f148459 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -347,6 +347,7 @@ static void sony_laptop_report_input_event(u8 event) struct input_dev *jog_dev = sony_laptop_input.jog_dev; struct input_dev *key_dev = sony_laptop_input.key_dev; struct sony_laptop_keypress kp = { NULL }; + int scancode; if (event == SONYPI_EVENT_FNKEY_RELEASED || event == SONYPI_EVENT_ANYBUTTON_RELEASED) { @@ -380,8 +381,8 @@ static void sony_laptop_report_input_event(u8 event) dprintk("sony_laptop_report_input_event, event not known: %d\n", event); break; } - if (sony_laptop_input_index[event] != -1) { - kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]]; + if ((scancode = sony_laptop_input_index[event]) != -1) { + kp.key = sony_laptop_input_keycode_map[scancode]; if (kp.key != KEY_UNKNOWN) kp.dev = key_dev; } @@ -389,9 +390,9 @@ static void sony_laptop_report_input_event(u8 event) } if (kp.dev) { - input_report_key(kp.dev, kp.key, 1); /* we emit the scancode so we can always remap the key */ - input_event(kp.dev, EV_MSC, MSC_SCAN, event); + input_event(kp.dev, EV_MSC, MSC_SCAN, scancode); + input_report_key(kp.dev, kp.key, 1); input_sync(kp.dev); /* schedule key release */ --------------030509090309030601060508--