diff options
Diffstat (limited to 'LUFA')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/MIDIClassHost.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MIDIClassHost.c b/LUFA/Drivers/USB/Class/Host/MIDIClassHost.c index 1300577fc..b1abb68d7 100644 --- a/LUFA/Drivers/USB/Class/Host/MIDIClassHost.c +++ b/LUFA/Drivers/USB/Class/Host/MIDIClassHost.c @@ -156,15 +156,21 @@ uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) uint8_t ErrorCode; Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipe.Address); - + Pipe_Unfreeze(); + if (Pipe_BytesInPipe()) { Pipe_ClearOUT(); if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) - return ErrorCode; + { + Pipe_Freeze(); + return ErrorCode; + } } + Pipe_Freeze(); + return PIPE_READYWAIT_NoError; } @@ -177,13 +183,19 @@ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface uint8_t ErrorCode; Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipe.Address); - + Pipe_Unfreeze(); + if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL)) != PIPE_RWSTREAM_NoError) - return ErrorCode; + { + Pipe_Freeze(); + return ErrorCode; + } if (!(Pipe_IsReadWriteAllowed())) Pipe_ClearOUT(); + Pipe_Freeze(); + return PIPE_RWSTREAM_NoError; } |