Re: [tpmdd-devel] [PATCH] tpm: Add sysfs interface to show TPM hardware version

[Peter Huewe]

Am 14. MÃrz 2017 19:18:15 MEZ schrieb Ken Goldman <kgold@xxxxxxxxxxxxxxxxxx>:
>On 3/13/2017 3:10 AM, Peter Huewe wrote:
>
>> And yes you are right there is currently no way, except for trial and
>> error, for the userspace to determine this. So an interface to get
>> this information makes sense to me.
>
>In practice, I suspect that a single user space application won't
>support both TPMs. 
Think of init scripts.
Which daemon should it start?


> It will send the first command, get an error
>response code that says it's the wrong TPM, and exit.
>
>Note that, although there is no overlap in the command API, the packet
>format is compatible enough that a meaningful response can be returned.
>
>
>
>
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