Port driver memory free
Tue Mar 22 05:44:12 CET 2005
Your problem is that you have copied my (copyrighted) code written
for use with erlang:port_call/3 and reused it with erlang:port_control/3.
The difference between the two is that port_call/3 uses the external
term format as encoded by the ei library while port_control/3 uses the
driver binary format.
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