Re: Grand prix legends recognize only two joystick axis

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On Sun, 2009-03-15 at 17:33 -0500, Xwang wrote:
> vitamin wrote:
> > 
> > Xwang wrote:
> > > warn:dinput:find_joydevs Failed to open "/dev/input/event0": 13 Permesso negato
> > 
> > This is your problem. Fix access to the event* device associated with your joystick.
> 
If your distro uses udev (Unified device control), which it probably
does, you can fix this yourself.

The rules used by udev to set up devices are in /etc/udev/rules.d
You shouldn't change the rules files because any kernel upgrade might
overwrite them, but you can add a custom file. The rule that's affecting
you is:

KERNEL=="mouse*|mice|event*",   NAME="input/%k", MODE="0640"

in '50-udev-default.rules'. These files are applied in lexical sort
order at  boot time, so you can add a file called, say,
'55-my-custom.rules' to contain the following lines:

# Custom rules
#
# Give user,group and world read and write access to /dev/input/event*
#
KERNEL=="event*",   NAME="input/%k", MODE="0644"


This rule will override the access permissions set in
'50-udev-default.rules'. You'll need to do this as root. Use any text
editor (vi, emacs or gedit will all be fine) to create the file, which
must be:

- owned by root
- in the root group
- read and write accessible to root 
- read accessible by group and world

Check this once you've created it and use chown and/or chmod to fix
ownership and access as necessary. If you try this be very careful not
to change any of the existing files: you can upset the entire i/o system
if you damage them. 

Make sure you keep a copy of your custom file somewhere safe. You may
need it again. You'll almost certainly need to reinstall it if you do a
clean install of a future Ubuntu release or change to a different
distro.
  

HTH
Martin




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