Index: uspace/lib/drv/include/usbhc_iface.h
===================================================================
--- uspace/lib/drv/include/usbhc_iface.h	(revision 3b77628b520eb4eb2108181a33848556e4d06e36)
+++ uspace/lib/drv/include/usbhc_iface.h	(revision 9e7cdf8cec0b341b659dd28789769d5dc4ebb7b7)
@@ -201,4 +201,20 @@
 	IPC_M_USBHC_CONTROL_READ_STATUS,
 
+	/** Issue control WRITE transfer.
+	 * See explanation at usb_iface_funcs_t (OUT transaction) for
+	 * call parameters.
+	 * This call is immediately followed by two IPC data writes
+	 * from the caller (setup packet and actual data).
+	 */
+	IPC_M_USBHC_CONTROL_WRITE,
+
+	/** Issue control WRITE transfer.
+	 * See explanation at usb_iface_funcs_t (IN transaction) for
+	 * call parameters.
+	 * This call is immediately followed by IPC data read from the caller
+	 * (setup packet).
+	 * Actual data are retrieved through IPC_M_USBHC_GET_BUFFER.
+	 */
+	IPC_M_USBHC_CONTROL_READ,
 
 	/* IPC_M_USB_ */
@@ -249,4 +265,12 @@
 	int (*control_read_status)(device_t *, usb_target_t,
 	    usbhc_iface_transfer_out_callback_t, void *);
+
+	int (*control_write)(device_t *, usb_target_t,
+	    void *, size_t, void *, size_t,
+	    usbhc_iface_transfer_out_callback_t, void *);
+
+	int (*control_read)(device_t *, usb_target_t,
+	    void *, size_t, void *, size_t,
+	    usbhc_iface_transfer_in_callback_t, void *);
 } usbhc_iface_t;