Added support to the MIDI Class drivers for packed data, where multiple MIDI events are packed into a single USB packet. Added new MIDI Class driver flush routines to override packing behaviour.

1 files changed, 11 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.h b/LUFA/Drivers/USB/Class/Host/MIDI.h
index b1971b16d..7b1cba395 100644
--- a/LUFA/Drivers/USB/Class/Host/MIDI.h
+++ b/LUFA/Drivers/USB/Class/Host/MIDI.h
@@ -125,6 +125,17 @@
 			uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo,

 			                                  MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);

 

+			/** Flushes the MIDI send buffer, sending any queued MIDI events to the device. This should be called to override the

+			 *  \ref MIDI_Host_SendEventPacket() function's packing behaviour, to flush queued events. Events are queued into the

+			 *  pipe bank until either the pipe bank is full, or \ref MIDI_Host_Flush() is called. This allows for multiple MIDI

+			 *  events to be packed into a single pipe packet, increasing data throughput.

+			 *

+			 *  \param[in,out] MIDIInterfaceInfo  Pointer to a structure containing a MIDI Class configuration and state

+			 *

+			 *  \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum

+			 */

+			 uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo);

+			 

 			/** Receives a MIDI event packet from the device.

 			 *

 			 *  \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the