Kernel timer usage

Init_timer, initialization
Add_timer, start
Mod_timer, modify
Del_timer, delete

Timer_list Structure
Function timing Function
DaParameters required by the TA scheduled Function
The expected scheduled time of expires, such as jiffies + XX * Hz, indicates a few seconds later.

// Declare timer_list, define function
Struct timer_list * ti;
Static void timer_handler (unsigned long l)
{
// Do something
// Then start timer again
Mod_timer (timer_list *) L, jiffers + 2 * Hz );
}

// Start Timer
Ti = kmalloc (sizeof (struct timer_list), gfp_kernel );
Init_timer (Ti );
Ti-> expires = jiffers + 2 * Hz;
Ti-> daTa = (unsigned long) Ti;
Ti-> function = & timer_handler;
Add_timer (Ti );