Index: uspace/lib/usb/include/usb/request.h
===================================================================
--- uspace/lib/usb/include/usb/request.h	(revision 1c258d122a2cbffcb8c0f6a8c54bf9ad4ca7b925)
+++ uspace/lib/usb/include/usb/request.h	(revision c19329a31dbc336afe50f18486fd099c82a0f48f)
@@ -50,4 +50,10 @@
 /** USB endpoint status - endpoint is halted (stalled). */
 #define USB_ENDPOINT_STATUS_HALTED ((uint16_t)(1 << 0))
+
+/** USB feature selector - endpoint halt (stall). */
+#define USB_FEATURE_SELECTOR_ENDPOINT_HALT (0)
+
+/** USB feature selector - device remote wake-up. */
+#define USB_FEATURE_SELECTOR_REMOTE_WAKEUP (1)
 
 /** Standard device request. */
@@ -135,4 +141,6 @@
     char **);
 
+int usb_request_clear_endpoint_halt(usb_pipe_t *, uint16_t);
+
 #endif
 /**
Index: uspace/lib/usb/src/request.c
===================================================================
--- uspace/lib/usb/src/request.c	(revision 1c258d122a2cbffcb8c0f6a8c54bf9ad4ca7b925)
+++ uspace/lib/usb/src/request.c	(revision c19329a31dbc336afe50f18486fd099c82a0f48f)
@@ -871,4 +871,18 @@
 }
 
+/** Clear halt bit of an endpoint pipe (after pipe stall).
+ *
+ * @param pipe Control pipe.
+ * @param ep_index Endpoint index (in native endianness).
+ * @return Error code.
+ */
+int usb_request_clear_endpoint_halt(usb_pipe_t *pipe, uint16_t ep_index)
+{
+	return usb_request_clear_feature(pipe,
+	    USB_REQUEST_TYPE_STANDARD, USB_REQUEST_RECIPIENT_ENDPOINT,
+	    uint16_host2usb(USB_FEATURE_SELECTOR_ENDPOINT_HALT),
+	    uint16_host2usb(ep_index));
+}
+
 /**
  * @}