linux+系统中断是什么意思

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>

static irqreturn_t my_interrupt_handler(int irq, void *dev_id) {
    printk(KERN_INFO "Interrupt occurred!\n");
    return IRQ_HANDLED;
}

static int __init my_module_init(void) {
    int ret;

    ret = request_irq(irq_number, my_interrupt_handler, IRQF_SHARED, "my_irq", (void *)irq_number);
    if (ret) {
        printk(KERN_ERR "Failed to register interrupt handler\n");
        return ret;
    }

    printk(KERN_INFO "Interrupt handler registered successfully\n");
    return 0;
}

static void __exit my_module_exit(void) {
    free_irq(irq_number, (void *)irq_number);
    printk(KERN_INFO "Interrupt handler unregistered\n");
}

module_init(my_module_init);
module_exit(my_module_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("A simple interrupt handler module");
MODULE_AUTHOR("Your Name");