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Fixed MIDI class driver send routines silently discarding packets if the endpoint or pipe is busy (thanks to Robin Green).

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This commit is contained in:
Dean Camera 2010-11-03 03:20:08 +00:00
parent 5ce8380a7d
commit ee495ca500
3 changed files with 13 additions and 18 deletions
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15
LUFA/Drivers/USB/Class/Host/MIDI.c
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@ -179,18 +179,15 @@ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface
if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
if (Pipe_IsReadWriteAllowed())
{
uint8_t ErrorCode;
if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
if (!(Pipe_IsReadWriteAllowed()))
Pipe_ClearOUT();
}
if (!(Pipe_IsReadWriteAllowed()))
Pipe_ClearOUT();
return PIPE_RWSTREAM_NoError;
}