From: Manfred Spraul <manfred@colorfullife.com>
To: no_spam@ntlworld.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: kill_fasync usage
Date: Tue, 04 Mar 2003 22:02:14 +0100 [thread overview]
Message-ID: <3E651456.1050808@colorfullife.com> (raw)
SA wrote:
>I wnat to use kill_fasync(struct fasync_struct *PTR,...) to notify userland of
>events. Can I just call kill_fasync regardless of the state of PTR or does
>PTR actually have to point to something valid.
>
>
kill_fasync receives the _address_ of the variable that contains the
list of processes that need notifications. It must not be NULL. (I
assume you look at 2.4 or 2.5 - 2.2 had a different interface)
Check linux/drivers/char/busmouse.c for an example, the interface is
simple: call fasync_helper to register and kill_fasync for the actual
notification.
--
Manfred
next reply other threads:[~2003-03-04 20:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 21:02 Manfred Spraul [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-03-04 20:08 kill_fasync usage no_spam
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