[TrouSerS-users] /dev/tpm0 not exist

[minkyung park]

Hello, I have a question.

I'm using TPM in Cryptocape. And my device is Beaglebone black(BBB).


At first, BBB's kernel version was 3.8.13-bone70, and in this version I
successfully used tcsd.

And later, i updated kernel version to 3.18.5 because I have to use
bluetooth with ipv6.

After updating the kernel, I cannot use tcsd.
(when i do 'tpm_*' instruction, I get "layer=tsp, code=0011 (17),
Communication failure" error)

When i do 'lsmod', I get this result.

-------------------------------------------------------------------
tpm_i2c_atmel 3691 0
tpm 16307 1 tpm_i2c_atmel
-----------------------------------------------------------------------

Also I cannot find '/dev/tpm*'

How can I get /dev/tpm? or /dev/tpm0?


thanks