pci没有驱动程序怎么解

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pci数据捕获和信号处理控制器没有驱动程序
sm总线控制器没有驱动程序
pci简单通讯控制器没有驱动程序
pci设备没有驱动程序
pci串行端口没有驱动程序

  • 建议你看下这篇博客👉 ：pci总线扫描及pci网卡驱动
  • 除此之外, 这篇博客: PCI设备驱动解析中的 2.4 申请注册中断函数 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:

  • 看函数

    result = request_irq(bt->irq, bt878_irq,
                     IRQF_SHARED, "bt878", (void *) bt);

    bt878_irq函数定义如下：

    /*****************************/
/* Interrupt service routine */
/*****************************/

static irqreturn_t bt878_irq(int irq, void *dev_id)
{
        u32 stat, astat, mask;
        int count;
        struct bt878 *bt;

        bt = (struct bt878 *) dev_id;

        count = 0;
        while (1) {
                stat = btread(BT878_AINT_STAT);
                mask = btread(BT878_AINT_MASK);
                if (!(astat = (stat & mask)))
                        return IRQ_NONE;        /* this interrupt is not for me */
/*              dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */
                btwrite(astat, BT878_AINT_STAT);        /* try to clear interrupt condition */


                if (astat & (BT878_ASCERR | BT878_AOCERR)) {
                        if (bt878_verbose) {
                                printk(KERN_INFO
                                       "bt878(%d): irq%s%s risc_pc=%08x\n",
                                       bt->nr,
                                       (astat & BT878_ASCERR) ? " SCERR" :
                                       "",
                                       (astat & BT878_AOCERR) ? " OCERR" :
                                       "", btread(BT878_ARISC_PC));
                        }
                }
                if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) {
                        if (bt878_verbose) {
                                printk(KERN_INFO
                                     "bt878(%d): irq%s%s%s risc_pc=%08x\n",
                                     bt->nr,
                                     (astat & BT878_APABORT) ? " PABORT" :
                                     "",
                                     (astat & BT878_ARIPERR) ? " RIPERR" :
                                     "",
                                     (astat & BT878_APPERR) ? " PPERR" :
                                     "", btread(BT878_ARISC_PC));
                        }
                }
                if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) {
                        if (bt878_verbose) {
                                printk(KERN_INFO
                                     "bt878(%d): irq%s%s%s risc_pc=%08x\n",
                                     bt->nr,
                                     (astat & BT878_AFDSR) ? " FDSR" : "",
                                     (astat & BT878_AFTRGT) ? " FTRGT" :
                                     "",
                                     (astat & BT878_AFBUS) ? " FBUS" : "",
                                     btread(BT878_ARISC_PC));
                        }
                }
                if (astat & BT878_ARISCI) {
                        bt->finished_block = (stat & BT878_ARISCS) >> 28;
                        tasklet_schedule(&bt->tasklet);
                        break;
                }
                count++;
                if (count > 20) {
                        btwrite(0, BT878_AINT_MASK);
                        printk(KERN_ERR
                               "bt878(%d): IRQ lockup, cleared int mask\n",
                               bt->nr);
                        break;
                }
        }
        return IRQ_HANDLED;
}