What you want to do is "or" the the inputs.

http://www.linuxcnc.org/docview/html//hal_basic_hal.html#r1_3_5

John

On 16 Jan 2009 at 23:43, Thomas Kaiser wrote:

> Hello All
> 
> I would like to override (force) the input of the home switches for
> testing.
> 
> I created a "checkbutton" vcp component which should overwrite the
> "both-home-x/y" signal:
> 
> <checkbutton>
>      <halpin>"x-axis-home-force"</halpin>
> </checkbutton>
> 
> In the postgui.hal:
> linksp both-home-x pyvcp.x-axis-home-force
> 
> But this does not work. Is it possible to override (force) a input
> with 
> a vcp checkbutton? If possible, how do I have to do it?
> 
> Regards, Thomas
> 
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