struct pci_device Structure
name: The short device name.
probe: Checks if the driver can support a device with this type. The tag may be used to get more info with pci_read_conf(). See below. It returns a string with the device's name, or a NULL pointer, if the driver cannot support this device.
attach: Allocate a control structure and prepare it. This function may use the PCI mapping functions. See below. (configuration id) or type.
count: A pointer to a unit counter. It's used by the PCI configurator to allocate unit numbers.