Panic of client raised by the Serial Comms Server (or "Comms Server").
+0
+Write request made when request already in progress.
+1
+Read request made when request already in progress.
+2
+Break request made when request already in progress.
+3
+Invalid port handle passed by client.
+4
+Bad descriptor passed by client.
+5
+RComm::SetConfig() call made when another request already in progress.
6
+RComm::SetSignals() call made when another request already in progress.
7
+RComm::ResetBuffers() call made when another request already in progress.
8
+RComm::ReceiveBufferLength() call made when another request already in progress.
9
+Cannot have two outstanding RComm::NotifySignalChange() requests from the same client.
10
+Cannot have two outstanding RComm::NotifyFlowControlChange() requests from the same client.
11
+Cannot have two outstanding RComm::NotifyConfigChange() requests from the same client.
12
+Cannot have two outstanding RComm::NotifyBreak() requests from the same client.
13
+Cannot have two outstanding RComm::NotifyDataAvailable() requests from the same client.
14
+Cannot have two outstanding RComm::NotifyOutputEmpty() requests from the same client.
15
+Thread size is negative.
+16
+Minimum heap size is too small.
+17
+Maximum heap size is less than minimum heap size.
+18
+Wrong client session for set access request.
+19
+Client must close object before setting comm access.
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