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static int (struct platform_device *pdev)
{
init_timer(&engpio_delay_timer);
engpio_delay_timer.function = engpio_delay_timer_func;
engpio_delay_timer.data = NULL;
}
static int remove(struct platform_device *pdev)
{
del_timer(&engpio_delay_timer);
return 0;
}
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修改触发时间
1HZ=1s，所以触发时间是1s/20=50ms
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printk("Enter %sn", __func__);
mod_timer(&engpio_delay_timer, jiffies + HZ/20);
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时间到了触发指定function
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static void engpio_delay_timer_func(u_long a)
{
printk("Enter %sn", __func__);
}
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log
// 时间间隔50ms
[ 0.172768] Enter ldb_enable
[ 0.222668] Enter engpio_delay_timer_func
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