my driver test code,I want to use mod_timer to timer for 10 milliseconds, but the result is always 20 milliseconds. what’s wrong with it? ..

I’m trying to do basic hooking by locating sys_call_table and modify an entry for sys_read syscall to a function in my own kernel module. I have tried kprobes I’m just interested to do it with sys_call_table.

I’m trying to do basic hooking by locating sys_call_table and modify an entry for sys_read syscall to a function in my own kernel module. I have tried kprobes I’m just interested to do it with sys_call_table.

Closed 3 days ago.

Closed 3 days ago.

Currently working on adding a feature for linux kernel, I’m trying to add a field for each process.

Linux kernel defines many macros in its code, these macros have multi-levels which is hard to expand manually. So, is there any tool can help to expand these macros?

[*hi everyone, i have a problem when writing device driver for ssd1603 but when I run and use echo “1” > /dev/my_i2c_driver and use dmesg to print data and the data is not 1, Data is:

is linux header <linux/sysctl.h> deprecated ?

is linux header <linux/sysctl.h> depricated ?
I read this on man 2 sysctl :