On Fri, 15 Nov 2013 10:33:40 +0900, manty kuma said:
I am not talking about all the variables. i am talking about variables which are declared as module_param. These variables can anyways be changed from shell prompt using echo and cat like i mentioned in the desciption.
If you actually chase through the code, you'll see that when you change a module_param() variable, the module itself handles the parsing and then the saving of the new value - which allows it to do any locking needed and any cleanup of data that is required.
SO i was hoping i can do it from drivers aswell.
The obvious first question is: "Why are you trying to change a module's variables from behind it's back, from another module?" There's no formal API for it, mostly because we don't usually create APIs to support Usually Bad Ideas.