mod_timer(&s->timer, jiffies + HZ / 50);	/* 20 msec */ 
mod_timer(&s->timer, jiffies + msecs_to_jiffies(20)); 
static void saa6588_work(void *data){	struct saa6588 *s = (struct saa6588 *)data;	saa6588_i2c_poll(s);	mod_timer(&s->timer, jiffies + HZ / 50);	/* 20 msec */}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/e222f83406f987c661b6da2d3fb4fc8ae8b5c660/saa6588.c/clean/drivers/media/video/saa6588.c