Put this file in /etc/udev/rules.d/20-avrispmkii.rules
then restart the udev service to use the avrispmkII programmer.
SUBSYSTEM!="usb_device", ACTION!="add", GOTO="avrisp_end"
# Atmel Corp. JTAG ICE mkII
ATTR{idVendor}=="03eb", ATTR{idProduct}=="2103", MODE="660", GROUP="dialout"
# Atmel Corp. AVRISP mkII
ATTR{idVendor}=="03eb", ATTR{idProduct}=="2104", MODE="660", GROUP="dialout"
# Atmel Corp. Dragon
ATTR{idVendor}=="03eb", ATTR{idProduct}=="2107", MODE="660", GROUP="dialout"
LABEL="avrisp_end"