On Mon, Jan 12, 2015 at 5:42 AM, Paulo Fortuna Carvalho <pricardofc@xxxxxxxxx> wrote: > Hello, > I want to automatically load/unload a PCIe device driver when a card > is inserted/removed from the system. I can see in the system logger > with dmesg that the interrupt event is captured and acknowledged by > the pciehp hotplug service driver. > What I want to do next is that the operating system load/unload the > corresponding PCIe device driver for that card. When pciehp receives the interrupt, it should enumerate the device, and you should see a line in dmesg similar to this (of course, it will have different bus/device/function and different vendor/device IDs): pci 0000:00:16.0: [8086:9c3a] type 00 class 0x078000 The PCI core should then add the device using device_add(), and part of that is to emit a uevent, which can be read by user-space. Generally udev would handle the event and load the appropriate driver. I don't know the details of how the user-space side works. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
