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| author | Carlos Corbacho <carlos@strangeworlds.co.uk> | 2008-02-08 00:36:49 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-08 00:36:49 -0500 |
| commit | 20b4514799ebcfb04b45537e90e421cb73fd0cc9 (patch) | |
| tree | 40034e54acc85e95a4afd4bc5f3dddead4340185 /drivers | |
| parent | 543a956140e1f57331c0e528d2367106057aeca0 (diff) | |
| download | kernel_samsung_crespo-20b4514799ebcfb04b45537e90e421cb73fd0cc9.zip kernel_samsung_crespo-20b4514799ebcfb04b45537e90e421cb73fd0cc9.tar.gz kernel_samsung_crespo-20b4514799ebcfb04b45537e90e421cb73fd0cc9.tar.bz2 | |
ACPI: WMI: Improve Kconfig description
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@strangeworlds.co.uk>
CC: Pavel Machek <pavel@ucw.cz>
CC: Ray Lee <ray-lk@madrabbit.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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" |