Re: Reading a config file in a driver ....

Could you please let me know How in the driver i could be able to read the
file present in sysfs ??? Using init script how should i creat and edit the
file ????

I never had done these hence your suggession could be a better way for me to
learn it .

---Misbah


Olof Johansson-2 wrote:

On Wed, Jan 02, 2008 at 09:03:20PM -0800, Misbah khan wrote:

quoted

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
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