Dear all, I have tried this code :
———————————————————— #include <rtdm/driver.h> static int periode_us = 1000; module_param(periode_us, int, 0644); static void timer_task(rtdm_timer_t *); static rtdm_timer_t rtimer; static int __init init_oscillateur (void) { int err; rtdm_printk(KERN_INFO "%s.%s() : Initialisation\n", THIS_MODULE->name, __FUNCTION__); if ((err = rtdm_timer_init(& rtimer, timer_task, "Timer_Task")) != 0) { return err; } if ((err = rtdm_timer_start(& rtimer, periode_us*1000, periode_us*1000, RTDM_TIMERMODE_RELATIVE)) != 0) { rtdm_timer_destroy(& rtimer); return err; } return 0; } static void __exit exit_oscillateur (void) { rtdm_timer_stop(& rtimer); rtdm_timer_destroy(& rtimer); rtdm_printk(KERN_INFO "%s.%s() : Exit\n", THIS_MODULE->name, __FUNCTION__); } static void timer_task(rtdm_timer_t * unused) { rtdm_printk(KERN_INFO "%s.%s() : Appel Timer\n", THIS_MODULE->name, __FUNCTION__); } module_init(init_oscillateur); module_exit(exit_oscillateur); MODULE_LICENSE("GPL"); ———————————————————— However, when I execute the code, we have only : [ 6696.615556] oscillateur_gpio_rtdm.init_oscillateur() : Initialisation [ 6705.148129] oscillateur_gpio_rtdm.exit_oscillateur() : Exit So, why the rtdm_printk in the timer_task is never called? Thanks for your help. BR, Marwane.