Messages in this thread | | | Date | Thu, 2 Jun 2005 15:00:27 -0700 (PDT) | From | trusted linux <> | Subject | Re: TPM on IBM thinkcenter S51 |
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Torsten,
thanks, here is my strace related to tpm:
open("/dev/tpm", O_RDWR) = -1 ENODEV (No such device) write(2, "Can\'t open TPM Driver\n", 22Can't open TPM Driver ) = 22
I also inserted some printk in tpm.c and tpm_nsc.c (tpm_atmel.c as well). I only saw "init_tpm" be called. "tpm_open" was not even called!
This machine (IBM thinkcenter S51) has a TPM (confirmed by IBM support and its own specs). So, the only possible problem is the driver. Any idea?
thanks a lot,
Gang
--- Torsten Landschoff <tla@comsys.informatik.uni-kiel.de> wrote:
> On Fri, 2005-05-27 at 13:42 -0700, trusted linux > wrote: > > > I can't make TPM work on an IBM thinkcenter S51 > > running 2.6.12-rc5 kernel. Here is what I did: > > > > 1. build the drivers tpm.ko and tpm_nsc.ko and > > modprobe tpm > > 2. create /dev/tpm > > 3. build tpm libtcpa (version 1.1) > > 4. run tcpa_demo > > > > then I got an error "Can't open TPM driver". > > I'd check with strace first what's going on there. > In my case I > had /dev/tpm0 created by udev with libtcpa accessing > /dev/tpm. So - > what's the output of > > strace ./tcpa_demo > > ?? > > Greetings > > Torsten > >
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