From patchwork Mon Jan 26 10:12:23 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean Delvare X-Patchwork-Id: 5707741 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AC4D9C058D for ; Mon, 26 Jan 2015 10:12:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A7E9F20121 for ; Mon, 26 Jan 2015 10:12:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 631A62011E for ; Mon, 26 Jan 2015 10:12:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753174AbbAZKMc (ORCPT ); Mon, 26 Jan 2015 05:12:32 -0500 Received: from cantor2.suse.de ([195.135.220.15]:46892 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753022AbbAZKMb (ORCPT ); Mon, 26 Jan 2015 05:12:31 -0500 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 43077ADB3 for ; Mon, 26 Jan 2015 10:12:30 +0000 (UTC) Date: Mon, 26 Jan 2015 11:12:23 +0100 From: Jean Delvare To: Jiri Kosina Cc: linux-input@vger.kernel.org Subject: [PATCH RESEND] HID: Stop hiding options with !EXPERT Message-ID: <20150126111223.24b6a938@endymion.delvare> Organization: SUSE Linux X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.23; x86_64-suse-linux-gnu) MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Many HID driver options are hidden unless EXPERT is set. While I understand the idea of simplifying the kernel configuration for most users, in practice I believe it adds more confusion than it helps. One thing that worries me is that, in non-EXPERT mode, these drivers will be either built-in or modular based on apparent magic. For example, switching INPUT and HID from m to y will cause all these drivers to be built into the kernel when they were previously built as modules. Short of enabling EXPERT mode altogether, the user has no control over that. Generally I do not think tristate options should depend on !EXPERT. Of these, 11 of 15 are currently in the hid subsystem. The HID_LOGITECH option is even worse than the others. Sub-options depend on it, and this causes menuconfig and friends to display the option even though the user can't change its value. The help page for HID_LOGITECH will not explain why the value can't be changed. It only says, for example: Depends on: INPUT [=y] && HID [=y] and that leaves the user puzzled about why the option is forced to y. You might argue that this is a Kconfig bug, but that doesn't make it less annoying for the user. Even worse is that some of the sub-options of HID_LOGITECH select INPUT_FF_MEMLESS, which in turn gets out of control for the user. So, if you set INPUT=y and HID=y (something most general purpose distributions would do these days, as both modules would get loaded on a vast majority of systems otherwise), and you want support for force-feedback game controllers, you can't have that as a module, it has to be built-in, regardless of how rare these devices are. Of course, all this madness goes away once EXPERT is enabled, but then the rest of the kernel configuration becomes more complex, which totally voids the original point. For this reason, I would like all HID device tristate options to be displayed regardless of EXPERT being set or not. We can let the default settings still depend on EXPERT, that's not intrusive. Signed-off-by: Jean Delvare Cc: Jiri Kosina --- This was already sent on 2014-03-21, and discussed: http://www.spinics.net/lists/linux-input/msg30493.html I believe I answered all the points that were raised back then so I think this patch can be applied now. Thanks. drivers/hid/Kconfig | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) --- linux-3.19-rc6.orig/drivers/hid/Kconfig 2015-01-26 10:30:56.514183521 +0100 +++ linux-3.19-rc6/drivers/hid/Kconfig 2015-01-26 10:59:48.227551041 +0100 @@ -92,7 +92,7 @@ menu "Special HID drivers" depends on HID config HID_A4TECH - tristate "A4 tech mice" if EXPERT + tristate "A4 tech mice" depends on HID default !EXPERT ---help--- @@ -113,7 +113,7 @@ config HID_ACRUX_FF game controllers. config HID_APPLE - tristate "Apple {i,Power,Mac}Books" if EXPERT + tristate "Apple {i,Power,Mac}Books" depends on HID default !EXPERT ---help--- @@ -141,21 +141,21 @@ config HID_AUREAL Support for Aureal Cy se W-01RN Remote Controller and other Aureal derived remotes. config HID_BELKIN - tristate "Belkin Flip KVM and Wireless keyboard" if EXPERT + tristate "Belkin Flip KVM and Wireless keyboard" depends on HID default !EXPERT ---help--- Support for Belkin Flip KVM and Wireless keyboard. config HID_CHERRY - tristate "Cherry Cymotion keyboard" if EXPERT + tristate "Cherry Cymotion keyboard" depends on HID default !EXPERT ---help--- Support for Cherry Cymotion keyboard. config HID_CHICONY - tristate "Chicony Tactical pad" if EXPERT + tristate "Chicony Tactical pad" depends on HID default !EXPERT ---help--- @@ -186,7 +186,7 @@ config HID_CP2112 customizable USB descriptor fields are exposed as sysfs attributes. config HID_CYPRESS - tristate "Cypress mouse and barcode readers" if EXPERT + tristate "Cypress mouse and barcode readers" depends on HID default !EXPERT ---help--- @@ -235,7 +235,7 @@ config HID_ELO different devices than those handled by CONFIG_TOUCHSCREEN_USB_ELO. config HID_EZKEY - tristate "Ezkey BTC 8193 keyboard" if EXPERT + tristate "Ezkey BTC 8193 keyboard" depends on HID default !EXPERT ---help--- @@ -334,7 +334,7 @@ config HID_TWINHAN Support for Twinhan IR remote control. config HID_KENSINGTON - tristate "Kensington Slimblade Trackball" if EXPERT + tristate "Kensington Slimblade Trackball" depends on HID default !EXPERT ---help--- @@ -362,7 +362,7 @@ config HID_LENOVO - ThinkPad Compact USB Keyboard with TrackPoint (supports Fn keys) config HID_LOGITECH - tristate "Logitech devices" if EXPERT + tristate "Logitech devices" depends on HID default !EXPERT ---help--- @@ -451,14 +451,14 @@ config HID_MAGICMOUSE Apple Wireless "Magic" Mouse and the Apple Wireless "Magic" Trackpad. config HID_MICROSOFT - tristate "Microsoft non-fully HID-compliant devices" if EXPERT + tristate "Microsoft non-fully HID-compliant devices" depends on HID default !EXPERT ---help--- Support for Microsoft devices that are not fully compliant with HID standard. config HID_MONTEREY - tristate "Monterey Genius KB29E keyboard" if EXPERT + tristate "Monterey Genius KB29E keyboard" depends on HID default !EXPERT ---help---