Function pci::get_pci_device_bsf

pub fn get_pci_device_bsf(
    bus: u8,
    slot: u8,
    func: u8
) -> Result<Option<&'static PciDevice>, &'static str>

Returns a reference to the PciDevice with the given bus, slot, func identifier. If the PCI bus hasn’t been initialized, this initializes the PCI bus & scans it to enumerates devices.