[ltp] [patch 07/11] ibm-acpi: document fan control

[Shem Multinymous]

> + *      6      disengage mode (takes precedence over bit 7);
> + *             not available on all thinkpads.  Disables
> + *             tachometer, and speeds up fan to 100%

*slowly* speeds up fan, in my experience. That's exploited by the
antipulse hack so is perhaps worth mentioning.

> + *     5-3     either unused or fan level

On my T43, setting these is the same as setting fan level 7 (i.e., fan
level is 0..63 and 7..63 are identical).


  Shem