1intdriver_probe_device(structdevice_driver *drv,structdevice *dev)2{3intret =0;45if(!device_is_registered(dev))6return-ENODEV;78pr_debug("bus: '%s': %s: matched device %s with driver %s\n",9drv->bus->name, __func__, dev_name(dev), drv->name);1011pm_runtime_barrier(dev);1...
如果相符就调用platform_drv_probe()->driver->probe(),如果probe成功则绑定该设备到该驱动. kernel/init/main.c static int __init kernel_init(void * unused) { /* * Wait until kthreadd is all set-up. */ wait_for_completion(&kthreadd_done); /* * init can allocate pages on any node */ ...
如果相符就调用platform_drv_probe()->driver->probe(),如果probe成功则绑定该设备到该驱动. kernel/init/main.c static int __init kernel_init(void * unused) { /* * Wait until kthreadd is all set-up. */ wait_for_completion(&kthreadd_done); /* * init can allocate pages on any node */ ...
[ 0.176641] i.MX8MP clock driver probe done [ 0.178547] mxs-dma 33000000.dma-apbh: initialized [ 0.179360] Bus freq driver module loaded [ 0.185183] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.187587] 30880000.serial: ttymxc2 at MMIO 0x30...
driver_probe_device(drv, dev); 跑到driver_probe_device中去看看: 有一段很重要: if (drv->bus->match && !drv->bus->match(dev, drv)) goto Done; 明显,是调用的驱动的总线上的match函数。如果返回1,则可以继续,否则就Done了。 继承执行的话: ...
goto probe_failed; } driver_bound(dev); ret = 1; pr_debug("bus: '%s': %s: bound device %s to driver %s\n", drv->bus->name, __func__, dev->bus_id, drv->name); goto done; probe_failed: devres_release_all(dev); driver_sysfs_remove(dev); ...
如果相符就调用platform_drv_probe()->driver->probe(),如果probe成功则绑定该设备到该驱动. kernel/init/main.c static int __init kernel_init(void * unused) { /* * Wait until kthreadd is all set-up. */ wait_for_completion(&kthreadd_done); ...
如果相符就调用platform_drv_probe()->driver->probe(),如果probe成功则绑定该设备到该驱动. kernel/init/main.c static int __init kernel_init(void * unused) { /* * Wait until kthreadd is all set-up. */ wait_for_completion(&kthreadd_done); ...
(2)dwmac-dwc-qos-eth这个驱动一共调用了4个probe子项(441行、445行、456行和460行),分别完成不同的功能,一步步走到最终调用register_netdev完成网卡驱动的注册;上面代码中做了简述,之后的文章会一一剖析其中的细节。 下文见链接:Haonan:从0学linux网络驱动:驱动加载篇2-解析设备树中ethernet节点的各种属性 原创...
Current message level: 0x00000036 (54) probe link ifdown ifup If the driver version is later than 1.0.1, run the ethtool -i <Network port name> command to query the driver version. For example, if the following information is displayed after the driver of the 2.0.6 version is installed...