From: Alex Bennee <kernel-hacker@bennee.com>
To: Sudharsan Vijayaraghavan <svijayar@cisco.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Help !! calling function in module from a user program
Date: 18 Feb 2003 13:00:51 +0000 [thread overview]
Message-ID: <1045573251.2505.108.camel@cambridge.braddahead> (raw)
In-Reply-To: <4.3.2.7.2.20030218181634.01fb5428@desh>
On Tue, 2003-02-18 at 12:50, Sudharsan Vijayaraghavan wrote:
> Hi,
>
> Am a new bee to linux internals.
> I am trying to make a simple program witch will call a function from a
> module. I made a module compiled it and INSMOD-it into kernel, that works
> fine. I would like to call from my user program a function defined in my
> kernel module.
You never call functions directly from user-mode. You generally use a
syscall to interface between user-mode and kernel-mode. Most drivers
implement operations that map via these syscalls (i.e.
open/close/read/write etc).
What exactly are you trying to achieve?
--
Alex, homepage: http://www.bennee.com/~alex/
How much does it cost to entice a dope-smoking UNIX system guru to Dayton?
-- Brian Boyle, UNIX/WORLD's First Annual Salary Survey
next prev parent reply other threads:[~2003-02-18 12:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-18 12:50 Sudharsan Vijayaraghavan
2003-02-18 13:00 ` Alex Bennee [this message]
2003-02-18 13:43 ` Srinivas Chinta
2003-02-18 14:04 ` Alex Bennee
2003-02-18 13:44 ` Richard B. Johnson
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