Tiny Core Linux

Tiny Core Extensions => TCE Talk => Topic started by: harig2 on July 02, 2020, 06:23:56 PM

Title: kernel modules and modprobe parameters
Post by: harig2 on July 02, 2020, 06:23:56 PM

I'm trying to figure out the creation and loading of kernel modules using modprobe.  I have loaded a TinyCore 11.1 on a Winsystem C412 on a flash drive.  I have loaded openssh and can putty in to the system. I have loaded Busybox-httpd and created an Angular 10 web app that works.  I loaded compile.tzc and other extensions to create simple sample programs. I have even compiled and loaded a hello world kernel sample, which loads using the insmod or modprobe, from the site https://tldp.org/LDP/lkmpg/2.6/html/x323.html (https://tldp.org/LDP/lkmpg/2.6/html/x323.html),  So far all is great...except for one thing.

I would like to know what I'm doing wrong that when I load the module using modprobe, that the parameter(s) being passed in are not changed. The default value that is assigned in the c program is what is displayed in dmesg, and not the values that i passed using modprobe.  I know things are sort of working because when i run `sudo modprobe hello_5 myint=6' and then check `dmesg`, I see that the Module loaded, I even see a file `/sys/module/hello_5/parameters/myint` with a value of 240 the init value from the program.  I expect to see `6`, so why is modprobe not changing the value?

thanks
George   

Title: Re: kernel modules and modprobe parameters
Post by: gadget42 on April 29, 2022, 03:57:41 AM

searched for 'why is modprobe not changing the value?' and this was the first result i received:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/sec-setting_module_parameters

sharing is caring