From: "Richard B. Johnson" <root@chaos.analogic.com>
To: Hans-Georg Thien <1682-600@onlinehome.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: getting timestamp of last interrupt?
Date: Thu, 2 Oct 2003 14:59:28 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.53.0310021454370.9782@chaos> (raw)
In-Reply-To: <3F7C6319.4010407@onlinehome.de>
On Thu, 2 Oct 2003, Hans-Georg Thien wrote:
> I am looking for a possibility to read out the last timestamp when an
> interrupt has occured.
>
> e.g.: the user presses a key on the keyboard. Where can I read out the
> timestamp of this event?
You can get A SIGIO signal for every keyboard, (or other input) event.
What you do with it is entirely up to you. Linux/Unix doesn't have
"callbacks", instead it has signals. It also has select() and poll(),
all useful for handling such events. If you want a time-stamp, you
call gettimeofday() in your signal handler.
Cheers,
Dick Johnson
Penguin : Linux version 2.4.22 on an i686 machine (797.90 BogoMips).
Note 96.31% of all statistics are fiction.
next prev parent reply other threads:[~2003-10-02 18:56 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-01 21:48 [RFC][PATCH] "Disable Trackpad while typing" on Notebooks withh a PS/2 Trackpad Hans-Georg Thien
2003-05-01 22:13 ` Måns Rullgård
2003-05-06 9:29 ` wwp
2003-05-06 11:27 ` Hans-Georg Thien
2003-05-08 19:12 ` [RFC][PATCH] "Disable Trackpad while typing" on Notebooks withh aPS/2 Trackpad Khalid Aziz
2003-05-09 11:47 ` Hans-Georg Thien
2003-05-27 20:47 ` Hans-Georg Thien
2003-05-27 21:10 ` wwp
2003-05-29 12:07 ` Hans-Georg Thien
2003-09-30 20:51 ` [PORT to 2.6.x] "Disable Trackpad while typing" on Notebooks with a PS/2 Trackpad Hans-Georg Thien
2003-10-02 17:40 ` getting timestamp of last interrupt? Hans-Georg Thien
2003-10-02 18:54 ` Karim Yaghmour
2003-10-02 18:59 ` Richard B. Johnson [this message]
2003-10-02 22:46 ` Peter Chubb
[not found] <fa.fj0euih.s2sbop@ifi.uio.no>
[not found] ` <fa.fvjdidn.13ni70f@ifi.uio.no>
2003-10-04 4:03 ` Hans-Georg Thien
2003-10-06 12:52 ` Richard B. Johnson
2003-10-06 18:21 ` Hans-Georg Thien
2003-10-06 18:34 ` Richard B. Johnson
2003-10-06 19:05 ` Hans-Georg Thien
2003-10-06 19:33 ` Richard B. Johnson
2003-10-06 21:59 ` Hans-Georg Thien
[not found] ` <fa.ch95hks.10kepak@ifi.uio.no>
2003-10-04 4:05 ` Hans-Georg Thien
2003-10-06 15:26 ` Gabriel Paubert
2003-10-06 18:37 ` Hans-Georg Thien
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