diff --git a/sys/dev/usb/net/uhso.c b/sys/dev/usb/net/uhso.c
index 63c6dcf90e9..06ac416fbe4 100644
--- a/sys/dev/usb/net/uhso.c
+++ b/sys/dev/usb/net/uhso.c
@@ -902,6 +902,7 @@ uhso_probe_iface(struct uhso_softc *sc, int index,
 				device_printf(sc->sc_dev, "ucom_attach failed\n");
 				return (ENXIO);
 			}
+			ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
 
 			mtx_lock(&sc->sc_mtx);
 			usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
@@ -920,6 +921,7 @@ uhso_probe_iface(struct uhso_softc *sc, int index,
 			device_printf(sc->sc_dev, "ucom_attach failed\n");
 			return (ENXIO);
 		}
+		ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
 	}
 	else {
 		UHSO_DPRINTF(0, "Unknown type %x\n", type);
diff --git a/sys/dev/usb/serial/u3g.c b/sys/dev/usb/serial/u3g.c
index dbbe8447d47..71776b255e9 100644
--- a/sys/dev/usb/serial/u3g.c
+++ b/sys/dev/usb/serial/u3g.c
@@ -818,8 +818,10 @@ u3g_attach(device_t dev)
 		DPRINTF("ucom_attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 	device_printf(dev, "Found %u port%s.\n", sc->sc_numports,
 	    sc->sc_numports > 1 ? "s":"");
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/uark.c b/sys/dev/usb/serial/uark.c
index 39f66b6640a..de7f057182d 100644
--- a/sys/dev/usb/serial/uark.c
+++ b/sys/dev/usb/serial/uark.c
@@ -227,6 +227,8 @@ uark_attach(device_t dev)
 		DPRINTF("ucom_attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);			/* success */
 
 detach:
diff --git a/sys/dev/usb/serial/ubsa.c b/sys/dev/usb/serial/ubsa.c
index 9d3d97d952a..8f1abec1850 100644
--- a/sys/dev/usb/serial/ubsa.c
+++ b/sys/dev/usb/serial/ubsa.c
@@ -331,6 +331,8 @@ ubsa_attach(device_t dev)
 		DPRINTF("ucom_attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/ubser.c b/sys/dev/usb/serial/ubser.c
index d0fe72346c3..204be9b4d49 100644
--- a/sys/dev/usb/serial/ubser.c
+++ b/sys/dev/usb/serial/ubser.c
@@ -296,6 +296,7 @@ ubser_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 
 	mtx_lock(&sc->sc_mtx);
 	usbd_xfer_set_stall(sc->sc_xfer[UBSER_BULK_DT_WR]);
diff --git a/sys/dev/usb/serial/uchcom.c b/sys/dev/usb/serial/uchcom.c
index 5a9c02d6791..99c3ce718d0 100644
--- a/sys/dev/usb/serial/uchcom.c
+++ b/sys/dev/usb/serial/uchcom.c
@@ -354,6 +354,8 @@ uchcom_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/ucycom.c b/sys/dev/usb/serial/ucycom.c
index be1ca548385..6f0db7d2caa 100644
--- a/sys/dev/usb/serial/ucycom.c
+++ b/sys/dev/usb/serial/ucycom.c
@@ -272,13 +272,15 @@ ucycom_attach(device_t dev)
 	}
 	error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 	    &ucycom_callback, &sc->sc_mtx);
-
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	if (urd_ptr) {
 		free(urd_ptr, M_USBDEV);
 	}
+
 	return (0);			/* success */
 
 detach:
diff --git a/sys/dev/usb/serial/ufoma.c b/sys/dev/usb/serial/ufoma.c
index 5555ed5600f..7da904efaa3 100644
--- a/sys/dev/usb/serial/ufoma.c
+++ b/sys/dev/usb/serial/ufoma.c
@@ -450,6 +450,8 @@ ufoma_attach(device_t dev)
 		DPRINTF("ucom_attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	/*Sysctls*/
 	sctx = device_get_sysctl_ctx(dev);
 	soid = device_get_sysctl_tree(dev);
diff --git a/sys/dev/usb/serial/uftdi.c b/sys/dev/usb/serial/uftdi.c
index 946768f76f0..5dd6d92ff5e 100644
--- a/sys/dev/usb/serial/uftdi.c
+++ b/sys/dev/usb/serial/uftdi.c
@@ -332,6 +332,8 @@ uftdi_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);			/* success */
 
 detach:
diff --git a/sys/dev/usb/serial/ugensa.c b/sys/dev/usb/serial/ugensa.c
index 70e24cb5928..022e10616f1 100644
--- a/sys/dev/usb/serial/ugensa.c
+++ b/sys/dev/usb/serial/ugensa.c
@@ -247,6 +247,8 @@ ugensa_attach(device_t dev)
 		DPRINTF("attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);			/* success */
 
 detach:
diff --git a/sys/dev/usb/serial/uipaq.c b/sys/dev/usb/serial/uipaq.c
index a5516c1e45f..6d43858f352 100644
--- a/sys/dev/usb/serial/uipaq.c
+++ b/sys/dev/usb/serial/uipaq.c
@@ -1161,6 +1161,8 @@ uipaq_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/umct.c b/sys/dev/usb/serial/umct.c
index 1f91464e0fe..c9f442f2e8c 100644
--- a/sys/dev/usb/serial/umct.c
+++ b/sys/dev/usb/serial/umct.c
@@ -297,6 +297,8 @@ umct_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);			/* success */
 
 detach:
diff --git a/sys/dev/usb/serial/umodem.c b/sys/dev/usb/serial/umodem.c
index 49bb5802968..73abf65e94d 100644
--- a/sys/dev/usb/serial/umodem.c
+++ b/sys/dev/usb/serial/umodem.c
@@ -389,6 +389,8 @@ umodem_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/umoscom.c b/sys/dev/usb/serial/umoscom.c
index 8cf6bc191d4..79807a6d539 100644
--- a/sys/dev/usb/serial/umoscom.c
+++ b/sys/dev/usb/serial/umoscom.c
@@ -338,6 +338,8 @@ umoscom_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/uplcom.c b/sys/dev/usb/serial/uplcom.c
index df48ba25563..6a4b149a15c 100644
--- a/sys/dev/usb/serial/uplcom.c
+++ b/sys/dev/usb/serial/uplcom.c
@@ -445,6 +445,8 @@ uplcom_attach(device_t dev)
 		device_printf(dev, "init failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/usb_serial.c b/sys/dev/usb/serial/usb_serial.c
index 7ba74d9f648..9e9900a242a 100644
--- a/sys/dev/usb/serial/usb_serial.c
+++ b/sys/dev/usb/serial/usb_serial.c
@@ -185,6 +185,8 @@ static uint8_t ucom_bitmap[(UCOM_UNIT_MAX + 7) / 8];
 static struct mtx ucom_bitmap_mtx;
 MTX_SYSINIT(ucom_bitmap_mtx, &ucom_bitmap_mtx, "ucom bitmap", MTX_DEF);
 
+#define UCOM_TTY_PREFIX		"U"
+
 /*
  * Mark a unit number (the X in cuaUX) as in use.
  *
@@ -320,11 +322,12 @@ ucom_attach_tty(struct ucom_super_softc *ssc, struct ucom_softc *sc)
 		/* Use default TTY name */
 		if (ssc->sc_subunits > 1) {
 			/* multiple modems in one */
-			snprintf(buf, sizeof(buf), "U%u.%u",
+			snprintf(buf, sizeof(buf), UCOM_TTY_PREFIX "%u.%u",
 			    ssc->sc_unit, sc->sc_subunit);
 		} else {
 			/* single modem */
-			snprintf(buf, sizeof(buf), "U%u", ssc->sc_unit);
+			snprintf(buf, sizeof(buf), UCOM_TTY_PREFIX "%u",
+			    ssc->sc_unit);
 		}
 	}
 	tty_makedev(tp, NULL, "%s", buf);
@@ -409,6 +412,24 @@ ucom_detach_tty(struct ucom_softc *sc)
 	cv_destroy(&sc->sc_cv);
 }
 
+void
+ucom_set_pnpinfo_usb(struct ucom_super_softc *ssc, device_t dev)
+{
+    char buf[64];
+    uint8_t iface_index;
+    struct usb_attach_arg *uaa;
+
+    snprintf(buf, sizeof(buf), "ttyname=%s%d ttyports=%d",
+	     UCOM_TTY_PREFIX, ssc->sc_unit, ssc->sc_subunits);
+
+    /* Store the PNP info in the first interface for the dev */
+    uaa = device_get_ivars(dev);
+    iface_index = uaa->info.bIfaceIndex;
+    
+    if (usbd_set_pnpinfo(uaa->device, iface_index, buf) != 0)
+	device_printf(dev, "Could not set PNP info\n");
+}
+
 static void
 ucom_queue_command(struct ucom_softc *sc,
     usb_proc_callback_t *fn, struct termios *pt,
diff --git a/sys/dev/usb/serial/usb_serial.h b/sys/dev/usb/serial/usb_serial.h
index d1dbc650e57..5b53b892f86 100644
--- a/sys/dev/usb/serial/usb_serial.h
+++ b/sys/dev/usb/serial/usb_serial.h
@@ -193,6 +193,7 @@ int	ucom_attach(struct ucom_super_softc *,
 	    struct ucom_softc *, uint32_t, void *,
 	    const struct ucom_callback *callback, struct mtx *);
 void	ucom_detach(struct ucom_super_softc *, struct ucom_softc *);
+void	ucom_set_pnpinfo_usb(struct ucom_super_softc *, device_t);
 void	ucom_status_change(struct ucom_softc *);
 uint8_t	ucom_get_data(struct ucom_softc *, struct usb_page_cache *,
 	    uint32_t, uint32_t, uint32_t *);
diff --git a/sys/dev/usb/serial/uslcom.c b/sys/dev/usb/serial/uslcom.c
index 116b6fc463e..327fb3b8431 100644
--- a/sys/dev/usb/serial/uslcom.c
+++ b/sys/dev/usb/serial/uslcom.c
@@ -324,6 +324,8 @@ uslcom_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/uvisor.c b/sys/dev/usb/serial/uvisor.c
index 127f364807a..b4174e632d6 100644
--- a/sys/dev/usb/serial/uvisor.c
+++ b/sys/dev/usb/serial/uvisor.c
@@ -347,6 +347,8 @@ uvisor_attach(device_t dev)
 		DPRINTF("ucom_attach failed\n");
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	return (0);
 
 detach:
diff --git a/sys/dev/usb/serial/uvscom.c b/sys/dev/usb/serial/uvscom.c
index 1d1af8d26ee..865947c1a74 100644
--- a/sys/dev/usb/serial/uvscom.c
+++ b/sys/dev/usb/serial/uvscom.c
@@ -321,6 +321,8 @@ uvscom_attach(device_t dev)
 	if (error) {
 		goto detach;
 	}
+	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+
 	/* start interrupt pipe */
 	mtx_lock(&sc->sc_mtx);
 	usbd_transfer_start(sc->sc_xfer[UVSCOM_INTR_DT_RD]);