On 18 August 2011 03:48, doug metzler <doug.metz...@gmail.com> wrote:
> When I first started this adventure I was following the instructions here: > > http://ubuntuforums.org/showthread.php?t=1233589 > > and I issued these commands > $ sudo modprobe parport_pc io=0xa400 > $ sudo modprobe lp > > $ sudo /etc/init.d/cups restart That all sounds a bit counterproductive, I am afraid I have found that it can be helpful to load the bare minimum when investigating what works. I would open two terminal windows (which are indicated below by T1 and T2) T1> sudo dmesg -c T1> {password} That clears the dmesg buffer so that you can see through the cruft. T2> halrun T2> loadrt hal_parport cfg="0,1,2" T2> show funct Hopefully you should see 6 functions parport.0.read, parport.1.read, parport.2.read, parport.0.write... If not: T1> dmesg and read what it says. Assuming it has all worked so far: T2> loadrt threads T2> addf parport.0.read thread1 T2> addf parport.1.read thread1 T2> addf parport.2.read thread1 T2> addf parport.0.write thread1 T2> addf parport.1.write thread1 T2> addf parport.2.write thread1 T2> start (that last bit is rather important) T1> dmesg Now, in theory, you have your three auto-located parports linked to HAL and running in a realtime thread. So, to see if the pins are changing as hoped with the pendant attached: T1> loadusr halmeter This is the long-winded, manual way to set up HAL, but you do get to see at what point it is failing. The example above attempts to use parport_pc to locate the parports, if that isn't loaded or isn't working, you can try the explicit addresses in the loadrt hal_parport line instead of the indexes. -- atp "Torque wrenches are for the obedience of fools and the guidance of wise men" ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
