[PD] HID problem in Xubuntu.

Daniel Wilcox danomatika at gmail.com
Fri Jul 17 12:53:47 CEST 2009

> Hi? Hans,
> I've been checking the archives and found only one issue that has to do
> with the ubuntu problem and sais to put this line:
> KERNEL=="event[0-9]*",                  MODE="0666"
> in /etc/udev/rules.d/40-permissions.rules file.
> The problem is that xubuntu 9.04 (jaunty) doesn't have this file
> any more and permissions.rules, i think, are given in other archives...
> i'm looking in ubuntu forums to see what can i do... If someone
> knows something about...

If you are using  Ubuntu/Xubuntu Jaunty, the udev permissions files have
been moved to /lib/udev/rules.d:

As for the above, you can try adding the group to plugdev, something like

KERNEL=="event[0-9]*",                   MODE="0666", GROUP="plugdev"

since all users should be in the plugdev group.

I use this technique to open the mouse on my visual application which uses
sdl and runs from a basic terminal without X:

KERNEL=="mouse*"                      GROUP="plugdev"

There is also no need to modify the existing udev rule files since they are
read sequentially and can overwrite each other.
So, following the debian udev rule naming convention, if you make a file
called 90-puredata.rules and put the event rule
in there, it should override or modify the existing default rule.

Hans, it should be totally possible to ship a pd Ubuntu .deb that can
install this automatically as I've done this with my own
tools.  I can help with this if needed, I just havent used [hid] much.

Also, udev is really picky ... make sure each rule is on one line or it will
fail.  You can also use the udev tools to test each script
for parse errors, but I'm at work on a Hardy machine so I can't give you the
command right now.  The udev admin script changed names
between versions.

Dan Wilcox
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