From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261446AbUL2HgU (ORCPT ); Wed, 29 Dec 2004 02:36:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261344AbUL2HeS (ORCPT ); Wed, 29 Dec 2004 02:34:18 -0500 Received: from smtp802.mail.sc5.yahoo.com ([66.163.168.181]:12207 "HELO smtp802.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S261377AbUL2HdY (ORCPT ); Wed, 29 Dec 2004 02:33:24 -0500 From: Dmitry Torokhov To: Vojtech Pavlik Subject: [PATCH 2/16] Add serio start and stop methods Date: Wed, 29 Dec 2004 02:20:09 -0500 User-Agent: KMail/1.6.2 Cc: linux-input@atrey.karlin.mff.cuni.cz, LKML References: <200412290217.36282.dtor_core@ameritech.net> <200412290219.23638.dtor_core@ameritech.net> In-Reply-To: <200412290219.23638.dtor_core@ameritech.net> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200412290220.10708.dtor_core@ameritech.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org =================================================================== ChangeSet@1.1957.1.29, 2004-11-12 01:25:01-05:00, dtor_core@ameritech.net Input: add serio->start() and serio->stop() callback methods that are called whenever serio port is finishes being registered or unregistered. The callbacks are useful for drivers that share interrupt between several ports and there is a danger that interrupt handler will reference port that was just unregistered. Signed-off-by: Dmitry Torokhov drivers/input/serio/serio.c | 8 +++++++- include/linux/serio.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) =================================================================== diff -Nru a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c --- a/drivers/input/serio/serio.c 2004-12-29 01:46:30 -05:00 +++ b/drivers/input/serio/serio.c 2004-12-29 01:46:30 -05:00 @@ -328,7 +328,10 @@ serio->dev.release = serio_release_port; if (serio->parent) serio->dev.parent = &serio->parent->dev; - device_register(&serio->dev); + device_initialize(&serio->dev); + if (serio->start) + serio->start(serio); + device_add(&serio->dev); } /* @@ -350,6 +353,9 @@ up_write(&serio_bus.subsys.rwsem); put_driver(&drv->driver); } + + if (serio->stop) + serio->stop(serio); if (serio->parent) { spin_lock_irqsave(&serio->parent->lock, flags); diff -Nru a/include/linux/serio.h b/include/linux/serio.h --- a/include/linux/serio.h 2004-12-29 01:46:30 -05:00 +++ b/include/linux/serio.h 2004-12-29 01:46:30 -05:00 @@ -42,6 +42,8 @@ int (*write)(struct serio *, unsigned char); int (*open)(struct serio *); void (*close)(struct serio *); + int (*start)(struct serio *); + void (*stop)(struct serio *); struct serio *parent, *child;