Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261422AbUFBJuv (ORCPT ); Wed, 2 Jun 2004 05:50:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261426AbUFBJuv (ORCPT ); Wed, 2 Jun 2004 05:50:51 -0400 Received: from atlas.informatik.uni-freiburg.de ([132.230.150.3]:1685 "EHLO atlas.informatik.uni-freiburg.de") by vger.kernel.org with ESMTP id S261422AbUFBJt7 convert rfc822-to-8bit (ORCPT ); Wed, 2 Jun 2004 05:49:59 -0400 To: Dmitry Torokhov Cc: linux-kernel@vger.kernel.org Subject: Re: [RFC/RFT] Raw access to serio ports (2/2) From: Sau Dan Lee Date: 02 Jun 2004 11:49:52 +0200 Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=big5 Content-Transfer-Encoding: 8BIT Organization: Universitaet Freiburg, Institut fuer Informatik Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1835 Lines: 40 >>>>> "Dmitry" == Dmitry Torokhov writes: Dmitry> +static unsigned int i8042_aux_raw[4]; So, only AUX ports can be directly accessed? No direct access to keyboard port? Why? The SERIO_USERDEV patch does allow direct access to the PC AT keyboard, and it did help me locate the SysRq problem that I reported in other postings. i.e. it IS useful to be able to access the keyboard port directly. Dmitry> The driver will happily co-exist with psmouse and atkbd Dmitry> loaded as they ignore SERIO_8042_RAW ports, so it is Dmitry> possible to have one AUX port in raw mode and other in Dmitry> standard 2.6 mode. 1) there is no RAW access to the keyboard port; 2) I hate this black magic, in which the input "devices" (i.e. drivers) kidnap the serio ports they like according to the port type SERIO_8042_RAW, etc. That's a kind of hardcoding the binding between ports and drivers. Isn't it better to leave the AUX ports as SERIO_8042, and let the user dynamically change this port<-->driver binding? Then, we don't even need that ugly "i8042.raw" boot parameter or i8042_aux_raw option. The user can decide which ports are connected to your serio_raw driver, and which ports are connected to psmouse.ko. That would also allow multiple drivers driving the ports of the same type. -- Sau Dan LEE ???u??(Big5) ~{@nJX6X~}(HZ) E-mail: danlee@informatik.uni-freiburg.de Home page: http://www.informatik.uni-freiburg.de/~danlee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/