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--- mycnc:wireless_pendants [2020/05/05 10:00] – ivan
+++ mycnc:wireless_pendants [2022/08/19 15:22] (current) – ivan
@@ Line 145: / Line 145: @@
 . Restart myCNC software, it should get access to XHC Pendant control over "libusb" driver.
+====XHC wireless pendant control for Linux====
+Pendant control on Linux should be automatic, however in case of issues it may be necessary to check the ''99-xhc.rules'' file.
+Linux has a "udev" subsystem that handles hotplug events, for instance an event when a USB device is inserted, in which case Linux reads the ID numbers, looks into udev rules, and runs the appropriate scripts. For XHC pentants, the myCNC team has a rules file with which the user is allowed to read and write data to the pentant. In order to diagnose issues, it is necessary to locate this file:
+<code>/etc/udev/rules.d/99-xhc.rules</code>
+and check if it mentions the device that is currently being used (for instance, the WHB02 pendant would be //10ce:eb6f//). Normally, myCNC creates this file automatically. In case it does not exist or does not contain the necessary line(s), then something is wrong.
+By default, access is open to the administrator ONLY, a simple user does not have the permissions. As such, if you are running into an error while opening the file, check that your user has the necessary permissions. If the file exists, you can try to delete it, restart the software and see if the file reappears.