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    SubjectRe: [PATCH v2] tpm_tis: Use timeouts returned from TPM
    On 02/22/2011 08:41 PM, Stefan Berger wrote:
    > Below patch applies to the tip of the git tree.
    > v2:
    > - adjusting all timeouts for TPM devices reporting too low timeout
    > numbers
    > - also displaying in sysfs whether the timeouts are 'original' or
    > 'adjusted'
    > The current TPM TIS driver in git discards the timeout values returned
    > from the TPM. The check of the response packet needs to consider that
    > the return_code field is 0 on success and the size of the expected
    > packet is equivalent to the header size + u32 length indicator for the
    > TPM_GetCapability() result + 3 timeout indicators of type u32.
    > Since some TPMs seem to return timeouts in msec rather than usec,
    > I am now adjusting all the timeouts rather than just the one for short
    > durations.
    > I am also adding a sysfs entry 'timeouts' showing the timeouts that are
    > being used.

    It works:
    # dmesg
    [15318.813905] tpm_tis 00:0c: 1.2 TPM (device-id 0xB, rev-id 16)
    [15318.879154] tpm_tis 00:0c: Adjusting TPM timeout parameters.
    # cat /sys/devices/pnp0/00\:0*/timeouts
    1000000 2000000 150000000 [adjusted]


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