New component for keyboards and panels.

Just a shot in the dark, have you tried the suggested
$ chmod 666 /dev/uinput

Should be
sudo chmod 666 /dev/uinput

Hi
Thank you for fast respond ! , MR.Aciera and MR.tommylight
 sudo chmod 666 /dev/uinput   
WORK !!
Now ls -l /dev/uinput    result   chang to  :  crw-crw-crw

Then I try reboot my PC
after reboot open terminal and recheck 

ls -l /dev/uinput
but it's will change back to  crw

---

I must type again : sudo chmod 666 /dev/uinput 
Then I try  open linux from terminal   and try keycode  2 button  it's Awsome  I can "G" and "1" in MDI

At last .......
How to remember  after reboot permission onfile uinput ?

 

Well, that might be since the uinput is accessed during boot time, so something must be changing the permissions.
You can make a shortcut to start LinuxCNC and set permissions before running it as a bash script, butnit would still require entering the sudo password.

Isn't there a section in the document you posted a screenshot of that explains how to modify the .rules file so the permission is permanently set?

I really have no experience writing udev rules but I wonder if 'MODE:="0666"' is correct. Looking at this:
www.reactivated.net/writing_udev_rules.html

I only see (note the missing colon)
MODE="0666"

Might be worth a try.
And also you may want to check if that rules file is actually created with the correct content.