RPI4b Revision 7 not supported by HAL_PI_GIO

itsme wrote:

Thank you for your suggestion! I have not tested it yet, but I assume it will not work as expected.
The tmp folder is purged on startup...
 

Yes, indeed tmp folder is purged on startup.
And in fact the procedure copies the file on tmp every time before starting LinuxCNC ...  

Ok, I miss the part where cpuinfo is changed...