struct vpd_readonly {
    char	keyword[2];
    char	*value;
};

struct vpd_write {
    char	keyword[2];
    char	*value;
    int 	start;
    int 	len;
};

struct pcicfg_vpd {
    uint8_t	vpd_reg;	/* base register, + 2 for addr, + 4 data */
    char	vpd_cached;
    char	*vpd_ident;	/* string identifier */
    int 	vpd_rocnt;
    struct vpd_readonly *vpd_ros;
    int 	vpd_wcnt;
    struct vpd_write *vpd_w;
};