Re: [PATCH][MMC] Secure Digital (SD) support

Pierre Ossman
2005-05-06T14:18:50Z

Pierre Ossman wrote:
> Russell King wrote:
>
>> We'll also need to run this by Linus first, explaining why you believe
>> it's now ok to merge this. (Added Linus...)
>>
>
> It was also pointed out in the previous thread by myself, Alan Cox and
> Ian Molton that SD specs have been publically available from different
> companies for quite some time. As such it is difficult for anyone to
> claim that these are secret and can be regulated by a NDA. The only part
> that hasn't been found in the wild is the spec for the 'secure' parts of
> the cards. But that also means that it isn't included in this patch so
> it shouldn't pose a problem.
>

This issue doesn't seem to reach any kind of resolution so I figured I'd
take a poke at the people responsible. :)

Just to back up the claim that the specs are in the open here are some
links:

http://www.google.com/search?hl=en&q=%22Secure+Digital+Card%22+%22Product+Manual%22+site%3Asandisk.com&btnG=Google+Search

Which gives you several PDF:s with enough information to implement a SD
host. The one I've been using is:

http://www.sandisk.com/download/Product%20Manuals/Product%20ManualSDCardv1.7.pdf

Rgds
Pierre