struct card_info {
	char *card_name;					/* The 'nice' name of the card */
	char *pci_id;						/* PCI bus address in domain:bus:device.function format. May be shortened (e.g. c:00.0) */
	char *pci_dev_path;                 /* Path to the PCI device file */
	void *bar0_mmap;                    /* Mmap of the PCI BAR0 */
	unsigned short pci_device_id;		/* The device ID of the card, i.e. corresponds to the NVIDIA model number */
	char *i2c_dev_path;					/* Path to the i2c device file */
	int i2c_fd;							/* File descriptor for the i2c device file, for re-use */
	int product_id;						/* EVGA internal product ID, as reported by the iCX3 controller */
	void *nvml_device;					/* Pointer to nvmlDevice_t for use in NVML calls */
};

struct gpu_pci_info {
	char *card_name;
	unsigned short vendor_id;
	unsigned short device_id;
	unsigned short subvendor_id;
	unsigned short subdevice_id;
};

unsigned short read_pci_id(char *device_path, char *field);
char *read_nvidia_pci_address(char *device_path);