diff --git a/drivers/usb/emul/sandbox_flash.c b/drivers/usb/emul/sandbox_flash.c
index 98d20c0..2f84b36 100644
--- a/drivers/usb/emul/sandbox_flash.c
+++ b/drivers/usb/emul/sandbox_flash.c
@@ -390,8 +390,7 @@
 	fs[2].id = STRINGID_SERIAL;
 	fs[2].s = dev->name;
 
-	return usb_emul_setup_device(dev, PACKET_SIZE_64, plat->flash_strings,
-				     flash_desc_list);
+	return usb_emul_setup_device(dev, plat->flash_strings, flash_desc_list);
 }
 
 static int sandbox_flash_probe(struct udevice *dev)
diff --git a/drivers/usb/emul/sandbox_hub.c b/drivers/usb/emul/sandbox_hub.c
index 1432858..9ed7000 100644
--- a/drivers/usb/emul/sandbox_hub.c
+++ b/drivers/usb/emul/sandbox_hub.c
@@ -274,8 +274,7 @@
 
 static int sandbox_hub_bind(struct udevice *dev)
 {
-	return usb_emul_setup_device(dev, PACKET_SIZE_64, hub_strings,
-				     hub_desc_list);
+	return usb_emul_setup_device(dev, hub_strings, hub_desc_list);
 }
 
 static int sandbox_child_post_bind(struct udevice *dev)
diff --git a/drivers/usb/emul/sandbox_keyb.c b/drivers/usb/emul/sandbox_keyb.c
index 2735985..cff0176 100644
--- a/drivers/usb/emul/sandbox_keyb.c
+++ b/drivers/usb/emul/sandbox_keyb.c
@@ -208,8 +208,7 @@
 	fs[2].id = STRINGID_SERIAL;
 	fs[2].s = dev->name;
 
-	return usb_emul_setup_device(dev, PACKET_SIZE_8, plat->keyb_strings,
-				     keyb_desc_list);
+	return usb_emul_setup_device(dev, plat->keyb_strings, keyb_desc_list);
 }
 
 static int sandbox_keyb_probe(struct udevice *dev)
diff --git a/drivers/usb/emul/usb-emul-uclass.c b/drivers/usb/emul/usb-emul-uclass.c
index 6e03c1e..e4a267b 100644
--- a/drivers/usb/emul/usb-emul-uclass.c
+++ b/drivers/usb/emul/usb-emul-uclass.c
@@ -229,8 +229,8 @@
 	return ops->interrupt(emul, udev, pipe, buffer, length, interval);
 }
 
-int usb_emul_setup_device(struct udevice *dev, int maxpacketsize,
-			  struct usb_string *strings, void **desc_list)
+int usb_emul_setup_device(struct udevice *dev, struct usb_string *strings,
+			  void **desc_list)
 {
 	struct usb_dev_platdata *plat = dev_get_parent_platdata(dev);
 	struct usb_generic_descriptor **ptr;
diff --git a/include/usb.h b/include/usb.h
index 0ddc082..1563c9a 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -976,7 +976,6 @@
  * the USB emulation uclass about the features of the emulator.
  *
  * @dev:		Emulation device
- * @maxpacketsize:	Maximum packet size (e.g. PACKET_SIZE_64)
  * @strings:		List of USB string descriptors, terminated by a NULL
  *			entry
  * @desc_list:		List of points or USB descriptors, terminated by NULL.
@@ -984,8 +983,8 @@
  *			and others follow on after that.
  * @return 0 if OK, -ENOSYS if not implemented, other -ve on error
  */
-int usb_emul_setup_device(struct udevice *dev, int maxpacketsize,
-			  struct usb_string *strings, void **desc_list);
+int usb_emul_setup_device(struct udevice *dev, struct usb_string *strings,
+			  void **desc_list);
 
 /**
  * usb_emul_control() - Send a control packet to an emulator