On 8/10/06, Andrew Morton wrote:
> This situation is still a concern. From where did this additional
> information come?
> Was it reverse-engineered? If so, by whom and how can we satisfy
> of this?
> Was it from published documents?
Here's a more detailed explanation:
All the low level LPC register access is publicly documented in the
manual of the embedded controller. See  and in particular . The
submitted thinkpad_ec code just follows these specs (very defensively
with and a lot of extra status checks, because some EC hangs were
reported in older versions). The only remaining information is about
the accelerometer-specific commands implemented by the firmware; the
public APS spec  and the mainline code based on this already
contain most of the this information, and a few corrections and
extentions were gleaned from the reverse-engineered the firmware code
. If case you're wondering about the "opaque" function,
hdaps_check_ec(), then note that it's just code from the original
hdaps driver (following ) that's translated to use thinkpad_ec
instead of direct IO port access.
> Was it improperly obtained from NDA'ed documentation?
Absolutely not. I've never signed any NDA remotely related to this.
(and why I do so when the above sources already contain all the needed
BTW, I can't help wondering: do you have a similarly detailed account
for an appreciable fraction of the driver code in mainline?
> So hm. We're setting precedent here and we need Linus around to resolve
> this. Perhaps we can ask "Shem" to reveal his true identity to Linus
> maybe me) privately and then we proceed on that basis.
Sure, we can do this. Actually I've alredy e-mailed Linus to this
effect several days ago, before realizing he's off-line.
> "each of the Signed-off-by:ers should know the identity of the others".
How following the DCO's chain-of-trust model?
@@ -296,7 +296,7 @@ can certify the below:
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
+ it, and the legal identity of that person is known to me.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
and in particular
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