Re: [patch 4/5] [RFC] Add MMC Password Protection (lock/unlock) supportV7: mmc_sysfs.diff

[Pierre Ossman]

Anderson Briglia wrote:
> Hi Pierre,
>
> ext Pierre Ossman wrote:
>> Patch looks ok. But I never got an answer what the difference between
>> "change" and "assign" is.
>
> You're right, the command is the same, but the difference is the
> password's
> length and password itself sent to the card.
> According to MMC spec 4.1, when a password replacement is done, the
> length value
> (PWD_LEN) shall include both passwords, the old and the new one, and
> the password
> (PWD) shall include the old (currently) followed by the new password.

So shouldn't this be something that userspace handles?

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/