On 6 October 2016 at 16:36, <dan...@austin.rr.com> wrote: > So help me with a bigger picture- > > This feature could be exposed to the HAL by Python code alone, so there's no > compile stage?
Yes. > Does this require modifying existing files from LinuxCNC, or just adding new > files? No, just create a new file called "status" containing that text, give it exec permissions and move it to /usr/bin then you can "loadusr status" in the HAL file and it will create a commanded-speed HAL pin. You could do it rather more neatly, I suspect, in GladeVCP. That code could run in the background and update a display directly without going through HAL. > If I make this change in my current LinuxCNC, what would it be like to import > those changes into a new version of LinuxCNC? I think that, as LinuxCNC knows nothing about the component, it will just leave it untouched. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users