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Subject: Re: Can the kernel access /?
From: Xavier Bestel <xavier.bestel@free.fr>
To: Matt <madmatt@bits.bris.ac.uk>
Cc: linux-kernel@vger.kernel.org
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Date: 27 Apr 2001 17:15:03 +0200
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Le 27 Apr 2001 15:28:04 +0100, Matt a ?crit :
> I'm writing a device driver for a DSP card that requires some software
> loaded onto the card for it to function, currently I'm copying the
> software to the /dev node and the driver is doing the magic in it's
> write() handler.
> 
> Can the driver pull the file from the filesystem if I were to pass the
> path of the file as an argument on loading the module?

It's generally considered a better idea to load your firmware with a
userspace app doing an ioctl or a mmap on your driver - no nasty races
to take care of, only proven codepaths used.

Xav

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