From: Olof Johansson <olof@lixom.net>
To: Misbah khan <misbah_khan@engineer.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: Reading a config file in a driver ....
Date: Thu, 3 Jan 2008 10:30:19 -0600 [thread overview]
Message-ID: <20080103163019.GA4223@lixom.net> (raw)
In-Reply-To: <14591717.post@talk.nabble.com>
On Wed, Jan 02, 2008 at 09:03:20PM -0800, Misbah khan wrote:
>
> Hi all ....
>
> I am writing a LCD driver in which the default configuration for LCD would
> be loded at the Init . This default configuration if keep in the driver then
> for a change in default configuration we need to compile the driver which we
> never want . Hence we want a .config file in /etc/lcd.config dir which could
> be changed and the next boot will take this configuration as the default
> configuration.
>
> I need to know How to read from the config file in the driver form the dir
> /etc/lcd.config. The driver would be installed at boot up
The driver/kernel shouldn't read the file directly, if anything you
should have a userspace tool that reads it and adjusts the driver via
sysfs or similar. That tool can be run from some of the init scripts,
or from the ramdisk in case you want to do it early.
-Olof
next prev parent reply other threads:[~2008-01-03 16:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-03 5:03 Reading a config file in a driver Misbah khan
2008-01-03 16:30 ` Olof Johansson [this message]
2008-01-03 18:43 ` Carlos Munoz
2008-01-04 8:32 ` Misbah khan
2008-01-04 20:58 ` Control not branching to the instruction present at resetvec i.e 0xfffffffc ravi.rao
2008-01-05 14:19 ` Misbah khan
2008-01-04 8:36 ` Reading a config file in a driver Misbah khan
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