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selftests/tpm2: Open tpm dev in unbuffered mode 

In order to have control over how many bytes are read or written
the device needs to be opened in unbuffered mode.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
This commit is contained in:
Tadeusz Struk 2019-02-12 15:42:05 -08:00 committed by James Morris
parent f1a0ba6ccc
commit 6da70580af
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/tpm2/tpm2.py
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@ -358,9 +358,9 @@ class Client:
self.flags = flags
if (self.flags & Client.FLAG_SPACE) == 0:
self.tpm = open('/dev/tpm0', 'r+b')
self.tpm = open('/dev/tpm0', 'r+b', buffering=0)
else:
self.tpm = open('/dev/tpmrm0', 'r+b')
self.tpm = open('/dev/tpmrm0', 'r+b', buffering=0)
def close(self):
self.tpm.close()