Messages in this thread Patch in this message | | | From | Dmitry Torokhov <> | Subject | [PATCH 2/16] Add serio start and stop methods | Date | Wed, 29 Dec 2004 02:20:09 -0500 |
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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 <dtor@mail.ru>
drivers/input/serio/serio.c | 8 +++++++- include/linux/serio.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-)
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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; - 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/
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