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Message-ID: <a9cbba340901102144y2682ae1al4018c3613e99cee9@mail.gmail.com>
Date:	Sun, 11 Jan 2009 13:44:22 +0800
From:	"Cooper Yuan" <cooperyuan@...il.com>
To:	joseluismarchetti@...oo.com.br
Cc:	linux-kernel@...r.kernel.org
Subject: Re:

try following code, hope it helpful:

unsigned long old_fs;
orig_open=sys_call_table(__NR_open);
orig_read=sys_call_table(__NR_read);
orig_close=sys_call_table(__NR_close);
old_fs = get_fs();
set_fs(get_ds());
fd=orig_open(pathname,O_RDWR,"rwx-rwx-rwx");
orig_read(fd,buffer,size);
orig_close(fd);
set_fs(old_fs);


On Sun, Jan 11, 2009 at 11:41 AM, Jose Luis Marchetti
<joseluismarchetti@...oo.com.br> wrote:
> Hi,
>
> I would like to open/read/write/close a regular file from my device
> driver.
> I think it would be possible, but I am confused, the "The Linux Kernel
> Module Programming Guide" states that I can not use standard libraries
> from within a module, I know the standard library ends up calling
> system calls, but which calls should I use to deal with regular
> files ?
> I am developing a Ethernet driver and the Mac address configuration
>
> Thanks in advance!
>
> José Luís Marchetti
>
>
>      Veja quais são os assuntos do momento no Yahoo! +Buscados
> http://br.maisbuscados.yahoo.com
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