Current File : //lib/udev/rules.d/60-tpm-udev.rules

# tpm devices can only be accessed by the tss user but the tss
# group members can access tpmrm devices
KERNEL=="tpm[0-9]*", MODE="0660", OWNER="tss"
KERNEL=="tpmrm[0-9]*", MODE="0660", OWNER="tss", GROUP="tss"