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Trying the uparport driver:
1. build linuxCNC with '--enable-simulator'
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This now compiles uparport.c,h into hal_parport
2. for now, manual step required - make rtapi_app setuid root
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so uparport can gain parport register access privileges:
chown root ../bin/rtapi_app
chmod 4755 ../bin/rtapi_app
3: to give it a spin, run demo in this directory:
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halcmd -f signal.hal
this wiggles parport pins 2,3,4,5,6,7 with a frequency settable in the gladevp panel.
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libcpuid dependency removed mah 5/9/2012.
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