Pendant WHB04B on LinuxCNC 2.7 / Debian

I tried this, but I have an error message during startup.
See the screenshot.

It is XHC-WHB04B-6 or XHC-WHB04B-4 ?

have you do : You need to copy the files "99-xhc-whb04b-6.rules" in the folder /lib/udev/rules.d

i think the error is related to this rules file because you have error waitpid displayed, if your device is XHC-WHB04B-4 i haven't test this one but i can try to compile a version with correct PID/VID with another rules file

in your ini you need to have something like this :

[HALUI]
MDI_COMMAND=(debug,macro0)
MDI_COMMAND=(debug,macro1)
MDI_COMMAND=(debug,macro2)
MDI_COMMAND=(debug,macro3)
MDI_COMMAND=(debug,macro4)
MDI_COMMAND=(debug,macro5)
MDI_COMMAND=(debug,macro6)
MDI_COMMAND=(debug,macro7)
MDI_COMMAND=(debug,macro8)
MDI_COMMAND=(debug,macro9)
MDI_COMMAND=(debug,macro10)
MDI_COMMAND=(debug,macro11)
MDI_COMMAND=(debug,macro12)
MDI_COMMAND=(debug,macro13)
MDI_COMMAND=(debug,macro14)
MDI_COMMAND=(debug,macro15)
MDI_COMMAND=(debug,macro16)

asap this driver is planned to add to current master

github.com/LinuxCNC/linuxcnc/pull/714

It is a XHC-WHB04B-4.

The rule file is in the /lib/udev/rules.d folder.
But I don't have the HALUI in the ini file.
Do I need to ad this?

[HALUI]
MDI_COMMAND=(debug,macro0)
...

Great,

This means that the XHC-WHB04B-4 pendant will work after an update of LinuxCNC ?

If so, I'll wait

i think the rules file provided is wrong

try this one please