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* Add "-device mf624" to Qemu command line parameters.
E. g. "i386-softmmu$ ./qemu -device mf624 -hda ..//debian.qcow --boot c"
+
+* Virtual MF624 card communicates with GUI interface through TCP/IP protocol.
+ For choosing particular port number use "-device mf624, port=55555",
+ where 55555 is your port number.