
Only one process can interact with the TPM module and that process should be tcsd. The tpm_rng kernel module should instead be loaded and /dev/hwrnd be used to read the TPM random generator. Also, log which random generator devices are used by rngd on startup.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.