Re: [PATCH v2] platform/x86: wmi-bmof: New driver to expose embedded Binary WMI MOF metadata

From: Pali RohÃr
Date: Mon Jun 19 2017 - 12:08:02 EST

On Tuesday 06 June 2017 05:16:44 Andy Lutomirski wrote:
> Many laptops (and maybe servers?) have embedded WMI Binary MOF
> metadata. We do not yet have open-source tools for processing the
> data, although one is in the works thanks to Pali:
> There is currently no interface to get the data in the first place.
> By exposing it, we facilitate the development of new tools.
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
> Cc: Mario Limonciello <mario_limonciello@xxxxxxxx>
> Cc: Pali RohÃr <pali.rohar@xxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: platform-driver-x86@xxxxxxxxxxxxxxx
> Cc: linux-acpi@xxxxxxxxxxxxxxx
> [dvhart: make sysfs mof binary read only, fixup comment block format]
> [dvhart: use bmof terminology and dev_err instead of dev_warn]
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> Signed-off-by: Darren Hart (VMware) <dvhart@xxxxxxxxxxxxx>
> ---
> since-v1:
> * address Pali's comments:
> * update the cover letter for clarity and accuracy
> * update mof->bmof and MOF to Binary MOF throughout the patch
> * use dev_err instead of dev_warn in wmi_bmof_probe
> drivers/platform/x86/Kconfig | 12 ++++
> drivers/platform/x86/Makefile | 1 +
> drivers/platform/x86/wmi-bmof.c | 125

Another suggestion (unrelated to this patch): For working with ACPI-WMI,
this binary MOF buffer is not enough. It is needed also content of _WDG
buffer. What about exporting it too via sysfs? Probably not part of of
wmi-bmof driver, but wmi driver itself.

Pali RohÃr

Attachment: signature.asc
Description: This is a digitally signed message part.