diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/caiaq-device.c
index b143ef7152f7..a62500e387a6 100644
--- a/sound/usb/caiaq/caiaq-device.c
+++ b/sound/usb/caiaq/caiaq-device.c
@@ -446,7 +446,7 @@ static int __devinit snd_probe(struct usb_interface *intf,
 	if (!card)
 		return -ENOMEM;
 			
-	dev_set_drvdata(&intf->dev, card);
+	usb_set_intfdata(intf, card);
 	ret = init_card(caiaqdev(card));
 	if (ret < 0) {
 		log("unable to init card! (ret=%d)\n", ret);
@@ -460,7 +460,7 @@ static int __devinit snd_probe(struct usb_interface *intf,
 static void snd_disconnect(struct usb_interface *intf)
 {
 	struct snd_usb_caiaqdev *dev;
-	struct snd_card *card = dev_get_drvdata(&intf->dev);
+	struct snd_card *card = usb_get_intfdata(intf);
 
 	debug("%s(%p)\n", __func__, intf);
 
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index bbd70d5814a0..c709b9563226 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -3709,7 +3709,7 @@ static int usb_audio_probe(struct usb_interface *intf,
 	void *chip;
 	chip = snd_usb_audio_probe(interface_to_usbdev(intf), intf, id);
 	if (chip) {
-		dev_set_drvdata(&intf->dev, chip);
+		usb_set_intfdata(intf, chip);
 		return 0;
 	} else
 		return -EIO;
@@ -3718,13 +3718,13 @@ static int usb_audio_probe(struct usb_interface *intf,
 static void usb_audio_disconnect(struct usb_interface *intf)
 {
 	snd_usb_audio_disconnect(interface_to_usbdev(intf),
-				 dev_get_drvdata(&intf->dev));
+				 usb_get_intfdata(intf));
 }
 
 #ifdef CONFIG_PM
 static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
 {
-	struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+	struct snd_usb_audio *chip = usb_get_intfdata(intf);
 	struct list_head *p;
 	struct snd_usb_stream *as;
 
@@ -3744,7 +3744,7 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
 
 static int usb_audio_resume(struct usb_interface *intf)
 {
-	struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+	struct snd_usb_audio *chip = usb_get_intfdata(intf);
 
 	if (chip == (void *)-1L)
 		return 0;
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index 6d9f9b135c62..320641ab5be7 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -1392,8 +1392,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
 	for (i = 0; i < intfd->bNumEndpoints; ++i) {
 		hostep = &hostif->endpoint[i];
 		ep = get_ep_desc(hostep);
-		if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
-		    (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
+		if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep))
 			continue;
 		ms_ep = (struct usb_ms_endpoint_descriptor*)hostep->extra;
 		if (hostep->extralen < 4 ||
@@ -1401,15 +1400,15 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
 		    ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
 		    ms_ep->bDescriptorSubtype != MS_GENERAL)
 			continue;
-		if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+		if (usb_endpoint_dir_out(ep)) {
 			if (endpoints[epidx].out_ep) {
 				if (++epidx >= MIDI_MAX_ENDPOINTS) {
 					snd_printk(KERN_WARNING "too many endpoints\n");
 					break;
 				}
 			}
-			endpoints[epidx].out_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-			if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+			endpoints[epidx].out_ep = usb_endpoint_num(ep);
+			if (usb_endpoint_xfer_int(ep))
 				endpoints[epidx].out_interval = ep->bInterval;
 			else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
 				/*
@@ -1428,8 +1427,8 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
 					break;
 				}
 			}
-			endpoints[epidx].in_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-			if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+			endpoints[epidx].in_ep = usb_endpoint_num(ep);
+			if (usb_endpoint_xfer_int(ep))
 				endpoints[epidx].in_interval = ep->bInterval;
 			else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
 				endpoints[epidx].in_interval = 1;
@@ -1495,20 +1494,20 @@ static int snd_usbmidi_detect_endpoints(struct snd_usb_midi* umidi,
 
 	for (i = 0; i < intfd->bNumEndpoints; ++i) {
 		epd = get_endpoint(hostif, i);
-		if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
-		    (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
+		if (!usb_endpoint_xfer_bulk(epd) &&
+		    !usb_endpoint_xfer_int(epd))
 			continue;
 		if (out_eps < max_endpoints &&
-		    (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
-			endpoint[out_eps].out_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-			if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+		    usb_endpoint_dir_out(epd)) {
+			endpoint[out_eps].out_ep = usb_endpoint_num(epd);
+			if (usb_endpoint_xfer_int(epd))
 				endpoint[out_eps].out_interval = epd->bInterval;
 			++out_eps;
 		}
 		if (in_eps < max_endpoints &&
-		    (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
-			endpoint[in_eps].in_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-			if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+		    usb_endpoint_dir_in(epd)) {
+			endpoint[in_eps].in_ep = usb_endpoint_num(epd);
+			if (usb_endpoint_xfer_int(epd))
 				endpoint[in_eps].in_interval = epd->bInterval;
 			++in_eps;
 		}
@@ -1607,21 +1606,19 @@ static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
 	}
 
 	epd = get_endpoint(hostif, 0);
-	if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN ||
-	    (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) {
+	if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) {
 		snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n");
 		return -ENXIO;
 	}
 	epd = get_endpoint(hostif, 2);
-	if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
-	    (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
+	if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) {
 		snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n");
 		return -ENXIO;
 	}
 	if (endpoint->out_cables > 0x0001) {
 		epd = get_endpoint(hostif, 4);
-		if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
-		    (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
+		if (!usb_endpoint_dir_out(epd) ||
+		    !usb_endpoint_xfer_bulk(epd)) {
 			snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n");
 			return -ENXIO;
 		}
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index a49246113e75..00397c8a765b 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -1755,11 +1755,10 @@ static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer)
 	if (get_iface_desc(hostif)->bNumEndpoints < 1)
 		return 0;
 	ep = get_endpoint(hostif, 0);
-	if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN ||
-	    (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
+	if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep))
 		return 0;
 
-	epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+	epnum = usb_endpoint_num(ep);
 	buffer_length = le16_to_cpu(ep->wMaxPacketSize);
 	transfer_buffer = kmalloc(buffer_length, GFP_KERNEL);
 	if (!transfer_buffer)
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index c2515b680f9f..73e59f4403a4 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -589,7 +589,7 @@ static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
 	struct us122l *us122l;
 	struct list_head *p;
 
-	card = dev_get_drvdata(&intf->dev);
+	card = usb_get_intfdata(intf);
 	if (!card)
 		return 0;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
@@ -615,7 +615,7 @@ static int snd_us122l_resume(struct usb_interface *intf)
 	struct list_head *p;
 	int err;
 
-	card = dev_get_drvdata(&intf->dev);
+	card = usb_get_intfdata(intf);
 	if (!card)
 		return 0;
 
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
index e5981a630314..ca26c532e77e 100644
--- a/sound/usb/usx2y/usbusx2y.c
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -392,7 +392,7 @@ static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_i
 	void *chip;
 	chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
 	if (chip) {
-		dev_set_drvdata(&intf->dev, chip);
+		usb_set_intfdata(intf, chip);
 		return 0;
 	} else
 		return -EIO;
@@ -401,7 +401,7 @@ static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_i
 static void snd_usX2Y_disconnect(struct usb_interface *intf)
 {
 	usX2Y_usb_disconnect(interface_to_usbdev(intf),
-				 dev_get_drvdata(&intf->dev));
+				 usb_get_intfdata(intf));
 }
 
 MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);