The functions for accessing topologies begin with tpm_ac.
| tpm_acclose | Closes a topology. |
| tpm_acexist | Checks if a topology exists. |
| tpm_acload | Loads a topology into memory. |
| tpm_acopen | Opens a topology. |
| tpm_acqty | Counts topologies. |
| tpm_acunload | Unloads a topology from memory. |
| tpm_acupgradeopen | Changes access from read only to write. |