i appriciate your concept and i need to know this :- The config should be in a structure or a bit mask . The user will have to change the value whenever he needs to change the default config. Where should i put that struct or bit field defination ???? He should know it preciesly before he change ????
Can you share with me your Implimentation so that i could get the exactly how you had done ... ----Misbah < >< Carlos Munoz-2 wrote: > > Olof Johansson wrote: >> 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. >> > What I've done in the past is to use module_param() to define variables > that get set when the module is loaded. Then all you need to do is edit > the /etc/modules file and change the parameter value. However, this > technique is only efficient if only a few parameters will ever change. > If you need to change more than a few parameters, Olof's suggestion > would be preferred. > > Carlos > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > -- View this message in context: http://www.nabble.com/Reading-a-config-file-in-a-driver-....-tp14591717p14612548.html Sent from the linuxppc-embedded mailing list archive at Nabble.com. _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
