Depending on the format type, different record fields are used
for output and input. The variable
x stands for the
written or read value.
MASKcan be set be set in the record definition. Stream Device does not set it. If
MASK==0, it is ignored (i.e.
RVAL=x). The record sets
ONAMis written, i.e.
VALis set accordingly. Other input strings are not accepted.
During initialization, the
@init handler is executed, if
present. All format converters work like in normal operation.