Dave,
I doubt that a blob model like /dev/mdesc is better since it's not the
approach that has been used in the kernel. You can convince yourself of
this by looking at where lshw gets most if its data: from sysfs. That's
because kernel developers before us (since 2.4 when sysfs has been
introduced, really) have decided to expose things on sysfs rather then
via blobs. So sysfs is definitely the way to go.
regards,
Eric
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