On Tue, Sep 04, 2018 at 05:03:40PM -0300, Martin Galvan wrote: > Hi all, > > I have an Infineon SLB 9665 TPM chip, which according to > https://www.infineon.com/dgdl/Infineon-OPTIGA_TPM-PB-v10_15-EN.pdf?fileId=5546d46145da30e80145efa2f0b96a8e > uses TPM 2.0. However, /sys/class/tpm/tpm0/device/tpm/tpm0/caps is > showing "TCG version: 1.2". I'm aware that the versioning scheme using > by the TCG is a bit confusing (e.g. 1.2 is the "Main" spec, while 2.0 > is a "library" spec), but I'm wondering whether this is correct. > > Thanks It is clearly a TPM 1.2 chip as it talks TPM 1.x protocol. The caps file is only shown for TPM 1.x devices and it uses TPM_ORD_GET_CAP command, which is part of the TPM 1.x protocol. /Jarkko
