Commit cde2afc5 authored by Dean Camera's avatar Dean Camera
Browse files

Ensure that the CDC class drivers return 0 if the number of unread bytes is...

Ensure that the CDC class drivers return 0 if the number of unread bytes is queried and the bank has become empty.
parent c3db72af
......@@ -68,7 +68,7 @@ BOARD =
# does not *change* the processor frequency - it should merely be updated to
# reflect the processor speed set externally so that the code can use accurate
# software delays.
F_CPU = 8000000
F_CPU = 16000000
# Input clock frequency.
......
......@@ -195,9 +195,14 @@ uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterface
if (Endpoint_IsOUTReceived())
{
if (!(Endpoint_BytesInEndpoint()))
Endpoint_ClearOUT();
return Endpoint_BytesInEndpoint();
{
Endpoint_ClearOUT();
return 0;
}
else
{
return Endpoint_BytesInEndpoint();
}
}
else
{
......
......@@ -315,12 +315,16 @@ uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo
if (Pipe_IsINReceived())
{
if (!(Pipe_BytesInPipe()))
Pipe_ClearIN();
BytesInPipe = Pipe_BytesInPipe();
Pipe_Freeze();
return BytesInPipe;
{
Pipe_ClearIN();
Pipe_Freeze();
return 0;
}
else
{
Pipe_Freeze();
return Pipe_BytesInPipe();
}
}
else
{
......
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