Good afternoon Community,

hoping someone can give some advice. We have a joystick running on a piece of equipment running RHEL 7.7 server that has software that looks for the joystick at JS0. However, something else on the system is grabbing js0 and leaving the Joystick to use JS1.

I was thinking I could write a udev rule to force the joystick to use JS0, but have a question related to the last parameter of the rule.

Using the "hwinfo --usb" command I can easily get the device path. So currently here is how my rule looks:

SUBSYSTEM=="net", ACTION=="add", DEVPATH=="/devices/pci0000:00/0000:00:14.0/usb3/3-11/e-11.4/3-11.4.3/3.11.4.3:1.0/input/*", NAME=js0

Of course this rule isn't working to force the joystick on js0. I think the problem is with the end of my rule in that I used "NAME". I don't think I can use this parameter for js0. But I don't know how to describe (or if I can) in a udev rule, what js0 is.

THanks in advance for any info that can be provided

I don't know if such a rule will work, but I note that you posted
as part of your rule. The device name should be enclosed within quotes like this

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BTW, is your joystick device USB-connected? If so, it might be possible to construct a rule using other attributes.

You should be able to get the joystick device (/dev/input/event<number>) using
then
From that udevadm can be used to get the device attributes eg assuming the joystick is /dev/input/event12...

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Returning to your opening post where you mentioned
You should be able to identify the device via dmesg eg
and perhaps

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