Index: uspace/lib/drv/include/usbhc_iface.h
===================================================================
--- uspace/lib/drv/include/usbhc_iface.h	(revision b36e5de2b3fb91be80216fe929bf2bfee1268933)
+++ uspace/lib/drv/include/usbhc_iface.h	(revision 3ae93a822febda099a86ca24250d39ee29ddb5f0)
@@ -153,4 +153,14 @@
 	IPC_M_USBHC_INTERRUPT_IN,
 
+	/** Send bulk data to device.
+	 * See explanation at usb_iface_funcs_t (OUT transaction).
+	 */
+	IPC_M_USBHC_BULK_OUT,
+
+	/** Get bulk data from device.
+	 * See explanation at usb_iface_funcs_t (IN transaction).
+	 */
+	IPC_M_USBHC_BULK_IN,
+
 	/** Issue control WRITE transfer.
 	 * See explanation at usb_iface_funcs_t (OUT transaction) for
@@ -207,4 +217,7 @@
 	usbhc_iface_transfer_in_t interrupt_in;
 
+	usbhc_iface_transfer_out_t bulk_out;
+	usbhc_iface_transfer_in_t bulk_in;
+
 	int (*control_write)(device_t *, usb_target_t,
 	    size_t,