From: Carlos Corbacho <carlos@xxxxxxxxxxxxxxxxxxx>
As Pavel Machek has pointed out, the Kconfig entry for WMI is pretty
non-descriptive.
Rewrite it so that it explains what ACPI-WMI is, and why anyone
would want to enable it.
Many thanks to Ray Lee for ideas on this.
Signed-off-by: Carlos Corbacho <carlos@xxxxxxxxxxxxxxxxxxx>
CC: Pavel Machek <pavel@xxxxxx>
CC: Ray Lee <ray-lk@xxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/Kconfig | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 65da19b..f688c21 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -207,11 +207,22 @@ config ACPI_WMI
depends on X86
depends on EXPERIMENTAL
help
- This driver adds support for the ACPI-WMI mapper device (PNP0C14)
- found on some systems.
+ This driver adds support for the ACPI-WMI (Windows Management
+ Instrumentation) mapper device (PNP0C14) found on some systems.
- NOTE: You will need another driver or userspace application on top of
- this to actually use anything defined in the ACPI-WMI mapper.
+ ACPI-WMI is a proprietary extension to ACPI to expose parts of the
+ ACPI firmware to userspace - this is done through various vendor
+ defined methods and data blocks in a PNP0C14 device, which are then
+ made available for userspace to call.
+
+ The implementation of this in Linux currently only exposes this to
+ other kernel space drivers.
+
+ This driver is a required dependency to build the firmware specific
+ drivers needed on many machines, including Acer and HP laptops.
+
+ It is safe to enable this driver even if your DSDT doesn't define
+ any ACPI-WMI devices.
config ACPI_ASUS
tristate "ASUS/Medion Laptop Extras"
--
1.5.4.34.g053d9
-
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