[arch-general] finding corresponding udev rule for device

[G. Schlisio]

hi all,
i want to customize the udev rule, that assigns my garmin gps device 
with a device name. permissions need to be set different, so users have 
read/write access.
the only problem is, that i dont know, which rule it is i have to 
customize. is there any way to determine, which standard udev rule 
applies for which device?
thanks for suggestions.
georg