X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c5038f1bf44aea75f1ae1ed035cb7d523ccfdacb..f9f1bcc25c17b031029200cd9648d76d4ee39dc4:/LUFA/Drivers/USB/Class/Device/MIDI.h

diff --git a/LUFA/Drivers/USB/Class/Device/MIDI.h b/LUFA/Drivers/USB/Class/Device/MIDI.h
index c7e46ba97..c7f7bd92c 100644
--- a/LUFA/Drivers/USB/Class/Device/MIDI.h
+++ b/LUFA/Drivers/USB/Class/Device/MIDI.h
@@ -93,28 +93,31 @@
 			 *
 			 *  \return Boolean true if the endpoints were sucessfully configured, false otherwise
 			 */
-			bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo);
+			bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 			
 			/** Processes incomming control requests from the host, that are directed to the given MIDI class interface. This should be
 			 *  linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event.
 			 *
 			 *  \param[in,out] MIDIInterfaceInfo  Pointer to a structure containing a MIDI Class configuration and state.
 			 */		
-			void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo);
+			void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
 			/** General management task for a given MIDI class interface, required for the correct operation of the interface. This should
 			 *  be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().
 			 *
 			 *  \param[in,out] MIDIInterfaceInfo  Pointer to a structure containing a MIDI Class configuration and state.
 			 */
-			void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo);
+			void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
 			/** Sends a MIDI event packet to the host. If no host is connected, the event packet is discarded.
 			 *
 			 *  \param[in,out] MIDIInterfaceInfo  Pointer to a structure containing a MIDI Class configuration and state.
 			 *  \param[in] Event  Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send
+			 *
+			 *  \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum			 
 			 */
-			void MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event);
+			uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
+			                                    MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1, 2);
 
 			/** Receives a MIDI event packet from the host.
 			 *
@@ -123,7 +126,8 @@
 			 *
 			 *  \return Boolean true if a MIDI event packet was received, false otherwise
 			 */
-			bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event);
+			bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
+			                                    MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1, 2);
 
 	/* Disable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)