identifying a 1.75

Stephen John Smoogen smooge at
Tue Aug 9 18:43:25 EDT 2011

On Tue, Aug 9, 2011 at 16:31, Paul Fox <pgf at> wrote:
> on XO-1 and XO-1.5, we were able to discover the model of the laptop
> from the information under /sys/class/dmi/id.  the DMI schema comes
> from the PC world, and we can't expect it to exist on ARM.
> there was also information to be found in /ofw on those machines, like
> serial number, and uuid.  the hex model designator found there was
> used as a fallback if the dmi tree wasn't there (on older XO-1
> firmware).
> on 1.75, there's no dmi tree, and /ofw has moved to /proc/device-tree,
> so we need to modify a lot of places that try and dig up platform
> info.  (see #11116)
> so i'm floating the attached script, tentatively named olpc-hwinfo,
> as a strawman.  i think it gives access to the most often needed info,
> and can obviously be expanded if needed.  it would go in olpc-utils,
> which would put it in /usr/sbin (since some clients live in /usr/sbin).
> thoughts/comments?  better approaches?  obvious additions?

Check the CPU? Shouldn't /proc/cpuinfo tell you what you have since
the major change is cpu?

Stephen J Smoogen.
"The core skill of innovators is error recovery, not failure avoidance."
Randy Nelson, President of Pixar University.
"Let us be kind, one to another, for most of us are fighting a hard
battle." -- Ian MacLaren

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