[gentoo-user] udev rule for periodic polling of USB gamepad?

[Nikos Chantziaras]

Is it possible to have a USB controller (8BitDo Pro 2) polled every
second or so with a udev rule? Or through some other mechanism?

This controller has a quirk where it disconnects every 4 seconds or so
and rubmbles when it does so. It also changes device number when this
happens. It does this because it tries to auto-detects the kind of
system it has been plugged into (like an XBox, Android, a Nintendo
Switch, whatever.)

Support for this controller was added in kernel 6.3 or so, but the
support is extremely half-assed because it doesn't deal with this
specific quirk. Currently on 6.6.9 here but this was never fixed.

[Michael Cook]

Post by Nikos Chantziaras
Is it possible to have a USB controller (8BitDo Pro 2) polled every
second or so with a udev rule? Or through some other mechanism?
This controller has a quirk where it disconnects every 4 seconds or so
and rubmbles when it does so. It also changes device number when this
happens. It does this because it tries to auto-detects the kind of
system it has been plugged into (like an XBox, Android, a Nintendo
Switch, whatever.)
Support for this controller was added in kernel 6.3 or so, but the
support is extremely half-assed because it doesn't deal with this
specific quirk. Currently on 6.6.9 here but this was never fixed.

I do not have this issue. I have the switch on the back of the
controller set to the X position and just connect over bluethooth
without any issues.


https://codeberg.org/fabiscafe/game-devices-udev I do have these udev
rules installed, unsure if they fix the issue you're talking about.

[Nikos Chantziaras]

Post by Michael Cook

Post by Nikos Chantziaras
Is it possible to have a USB controller (8BitDo Pro 2) polled every
second or so with a udev rule? Or through some other mechanism?
This controller has a quirk where it disconnects every 4 seconds or so
and rubmbles when it does so. [...]

I do not have this issue. I have the switch on the back of the
controller set to the X position and just connect over bluethooth
without any issues.

Mine does not have bluetooth. It's the "wired" version. It also doesn't
have switch. Switching modes works by simply holding down one of the
buttons when connecting. It auto detects X-Input when connecting it to a
PC. Holding down the X button will unfortunately not prevent it from
still doing auto-detection stuff when it doesn't get polled for several
seconds.

Post by Michael Cook
https://codeberg.org/fabiscafe/game-devices-udev I do have these udev
rules installed, unsure if they fix the issue you're talking about.

I have those too.