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From: Steven Scholz <steven.scholz@imc-berlin.de>
To: Stephan Linke <Stephan.Linke@epygi.de>
Cc: Linuxppc-Embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Using ioctl from with the kernel ???
Date: Tue, 12 Nov 2002 16:11:05 +0100	[thread overview]
Message-ID: <3DD11A09.B58EDAE0@imc-berlin.de> (raw)
In-Reply-To: FCEAKDJJAPHPLJFINDAJCEACCLAA.Stephan.Linke@epygi.de


Hi Stephan,

> Your right IOCTL is not applicable for this. You can simply call the driver
> functions directly. If these functions are called different from different
> context(s) (like your driver and the IOCTL function) you have to add some
> protection mechanism. (The code is not reentrant right?) You may try
> spin_lock() for this job (linux/spinlock.h). If you are calling the
> functions from interrupt contect too some extra protection is required...

Thanks for your reply.

But how could I call the ioctl handler of the driver?
I would need some (dummy) inode...

Steven

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2002-11-12 15:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-12 14:48 Using ioctl from with the kernel ??? Steven Scholz
2002-11-12 15:07 ` Stephan Linke
2002-11-12 15:11   ` Steven Scholz [this message]
2002-11-12 15:36     ` R: " Stefano Coluccini
2002-11-12 15:57     ` Stephan Linke
2002-11-12 16:05       ` Steven Scholz

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