From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carlos Corbacho Subject: Re: ACPI_WMI: worst config description of all times Date: Fri, 8 Feb 2008 01:19:07 +0000 Message-ID: <200802080119.08872.carlos@strangeworlds.co.uk> References: <20080207214715.GA15211@elf.ucw.cz> <200802072351.32521.carlos@strangeworlds.co.uk> <2c0942db0802071612r1b32f996jc26ac3792b8c31fc@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <2c0942db0802071612r1b32f996jc26ac3792b8c31fc@mail.gmail.com> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org To: Ray Lee Cc: Pavel Machek , Len Brown , kernel list , Linux-pm mailing list , linux-acpi@vger.kernel.org List-Id: linux-pm@vger.kernel.org On Friday 08 February 2008 00:12:24 Ray Lee wrote: > On Feb 7, 2008 3:51 PM, Carlos Corbacho wrote: > > On Thursday 07 February 2008 23:33:54 Ray Lee wrote: > > > Do you have list of hardware/platforms that require this feature to > > > get the hardware to work? (acer abc123, tcm1100 xyz) > > > > I have a very long list of Acer laptops that are supported - which is far > > too long, and changes on far too much of a regular basis to put in there. > > > > Perhaps adding something like "This driver is also a required dependency > > to build the firmware specific drivers needed for many laptops, including > > Acer and HP machines"? Would this be acceptable then? -Carlos --- ACPI: WMI: Improve Kconfig entry From: Carlos Corbacho 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 CC: Pavel Machek CC: Ray Lee CC: Len Brown --- drivers/acpi/Kconfig | 19 +++++++++++++++---- 1 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index b7fbf16..ea763ef 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -207,11 +207,22 @@ config ACPI_WMI depends on EXPERIMENTAL depends on X86 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"