pull request changes: Uppercase macro, check timeout return, indented case, moved null checks. still verifying single byte read
pull request changes: Uppercase macro, check timeout return, indented case, moved null checks. still verifying single byte read

kubostech/KubOS,kubostech/KubOS,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos