# This is a sample udev file for HIDAPI devices which changes the permissions

# to 0666 (world readable/writable) for a specified device on Linux systems.

# If you are using the libusb implementation of hidapi (libusb/hid.c), then

# use something like the following line, substituting the VID and PID with

# those of your device. Note that for kernels before 2.6.24, you will need

# to substitute "usb" with "usb_device". It shouldn't hurt to use two lines

# (one each way) for compatibility with older systems.

# HIDAPI/libusb

SUBSYSTEM=="usb", ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="003f", MODE="0666"

# If you are using the hidraw implementation (linux/hid.c), then do something

# like the following, substituting the VID and PID with your device. Busnum 1

# is USB.

# HIDAPI/hidraw

KERNEL=="hidraw*", ATTRS{busnum}=="1", ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="003f", MODE="0666"

# Once done, optionally rename this file for your device, and drop it into

# /etc/udev/rules.d and unplug and re-plug your device. This is all that is

# necessary to see the new permissions. Udev does not have to be restarted.

# Note that the hexadecimal values for VID and PID are case sensitive and

# must be lower case.

# If you think permissions of 0666 are too loose, then see:

# http://reactivated.net/writing_udev_rules.html for more information on finer

# grained permission setting. For example, it might be sufficient to just

# set the group or user owner for specific devices (for example the plugdev

# group on some systems).