ACPI: ibm-acpi: fix and extend fan control functions

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This patch extend fan control functions, implementing enable/disable for
all write access modes, implementing level control for all level-capable
write access modes.

The patch also updates the documentation, explaining levels auto and
disengaged.

ABI changes:
	1. Support level 0 as an equivalent to disable
	2. Add support for level auto and level disengaged when doing
	   EC 0x2f fan control
	3. Support enable/disable for all level-based write access modes
	4. Add support for level command on FANS thinkpads, as per
	   thinkwiki reports

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>

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This commit is contained in:

Henrique de Moraes Holschuh 2006-11-24 11:47:13 -02:00 • committed by Len Brown

parent 1c6a334e9c

commit a12095c2b5

2 changed files with 80 additions and 24 deletions

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67

Documentation/ibm-acpi.txt

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39

drivers/acpi/ibm_acpi.c

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