diff --git a/sys/dev/pci/pci_user.c b/sys/dev/pci/pci_user.c
--- a/sys/dev/pci/pci_user.c
+++ b/sys/dev/pci/pci_user.c
@@ -503,6 +503,45 @@
 #endif	/* COMPAT_FREEBSD32 */
 #endif	/* !PRE7_COMPAT */
 
+#ifdef COMPAT_FREEBSD14
+struct pci_conf_freebsd14 {
+	struct pcisel	pc_sel;		/* domain+bus+slot+function */
+	u_int8_t	pc_hdr;		/* PCI header type */
+	u_int16_t	pc_subvendor;	/* card vendor ID */
+	u_int16_t	pc_subdevice;	/* card device ID, assigned by 
+					   card vendor */
+	u_int16_t	pc_vendor;	/* chip vendor ID */
+	u_int16_t	pc_device;	/* chip device ID, assigned by 
+					   chip vendor */
+	u_int8_t	pc_class;	/* chip PCI class */
+	u_int8_t	pc_subclass;	/* chip PCI subclass */
+	u_int8_t	pc_progif;	/* chip PCI programming interface */
+	u_int8_t	pc_revid;	/* chip revision ID */
+	char		pd_name[PCI_MAXNAMELEN + 1];  /* device name */
+	u_long		pd_unit;	/* device unit number */
+};
+
+#ifdef COMPAT_FREEBSD32
+struct pci_conf_freebsd14_32 {
+	struct pcisel	pc_sel;		/* domain+bus+slot+function */
+	u_int8_t	pc_hdr;		/* PCI header type */
+	u_int16_t	pc_subvendor;	/* card vendor ID */
+	u_int16_t	pc_subdevice;	/* card device ID, assigned by
+					   card vendor */
+	u_int16_t	pc_vendor;	/* chip vendor ID */
+	u_int16_t	pc_device;	/* chip device ID, assigned by
+					   chip vendor */
+	u_int8_t	pc_class;	/* chip PCI class */
+	u_int8_t	pc_subclass;	/* chip PCI subclass */
+	u_int8_t	pc_progif;	/* chip PCI programming interface */
+	u_int8_t	pc_revid;	/* chip revision ID */
+	char		pd_name[PCI_MAXNAMELEN + 1];  /* device name */
+	u_int32_t	pd_unit;	/* device unit number */
+};
+#endif
+#define	PCIOCGETCONF_FREEBSD14_32	_IOC_NEWTYPE(PCIOCGETCONF_FREEBSD14, struct pci_conf_io32)
+#endif
+
 union pci_conf_union {
 	struct pci_conf			pc;
 #ifdef COMPAT_FREEBSD32
@@ -676,6 +715,14 @@
 	case PCIOCGETCONF32:
 		return (sizeof(struct pci_conf32));
 #endif
+#ifdef COMPAT_FREEBSD14
+	case PCIOCGETCONF_FREEBSD14:
+		return (sizeof(struct pci_conf_freebsd14));
+#ifdef COMPAT_FREEBSD32
+	case PCIOCGETCONF_FREEBSD14_32:
+		return (sizeof(struct pci_conf_freebsd14_32));
+#endif
+#endif
 #ifdef PRE7_COMPAT
 	case PCIOCGETCONF_FREEBSD6:
 		return (sizeof(struct pci_conf_freebsd6));
diff --git a/sys/sys/pciio.h b/sys/sys/pciio.h
--- a/sys/sys/pciio.h
+++ b/sys/sys/pciio.h
@@ -166,7 +166,7 @@
 #define	PCIIO_BAR_MMAP_RW	0x04
 #define	PCIIO_BAR_MMAP_ACTIVATE	0x08
 
-#define	PCIOCGETCONF	_IOWR('p', 5, struct pci_conf_io)
+#define	PCIOCGETCONF_FREEBSD14	_IOWR('p', 5, struct pci_conf_io)
 #define	PCIOCREAD	_IOWR('p', 2, struct pci_io)
 #define	PCIOCWRITE	_IOWR('p', 3, struct pci_io)
 #define	PCIOCATTACHED	_IOWR('p', 4, struct pci_io)
@@ -174,5 +174,6 @@
 #define	PCIOCLISTVPD	_IOWR('p', 7, struct pci_list_vpd_io)
 #define	PCIOCBARMMAP	_IOWR('p', 8, struct pci_bar_mmap)
 #define	PCIOCBARIO	_IOWR('p', 9, struct pci_bar_ioreq)
+#define	PCIOCGETCONF	_IOWR('p', 10, struct pci_conf_io)
 
 #endif /* !_SYS_PCIIO_H_ */