extern struct pci_dev *(*pci_find_device)(unsigned int vendor,unsigned int device,const struct pci_dev *from);
extern struct pci_dev *(*pci_find_subsys)(unsigned int vendor,unsigned int device,unsigned int ss_vendor,unsigned int ss_device,const struct pci_dev *from);
extern struct pci_dev *(*pci_find_class)(unsigned int pciclass,const struct pci_dev *from);
extern struct pci_dev *(*pci_find_slot)(unsigned int bus,unsigned int devfn);
extern int (*pci_find_capability)(struct pci_dev *dev,int cap);
extern int (*pci_read_config_byte)(struct pci_dev *dev, int where, u8 *val);
extern int (*pci_read_config_word)(struct pci_dev *dev, int where, u16 *val);
extern int (*pci_read_config_dword)(struct pci_dev *dev, int where, u32 *val);
extern int (*pci_write_config_byte)(struct pci_dev *dev, int where, u8 val);
extern int (*pci_write_config_word)(struct pci_dev *dev, int where, u16 val);
extern int (*pci_write_config_dword)(struct pci_dev *dev, int where, u32 val);
extern int (*pci_enable_device)(struct pci_dev *dev);