platform/x86: lenovo-wmi-capdata: Add debugfs file for dumping capdata

Browse source

The Lenovo GameZone/Other interfaces have some delicate divergences
among different devices. When making a bug report or adding support for
new devices/interfaces, capdata is the most important information to
cross-check with.

Add a debugfs file (lenovo_wmi/<device_name>/capdata), so that users can
dump capdata and include it in their reports.

Since `struct capdata01' is just an extension to `struct capdata00',
also convert the former to include the latter anonymously
(-fms-extensions, since v6.19). This is declared as a union in the
capdata01 struct, with both the anonymous declaration and as a named
member to avoid type casting when passing just the capdata00 struct
pointer.

Tested-by: Kurt Borja <kuurtb@gmail.com>
Signed-off-by: Rong Zhang <i@rong.moe>
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Link: https://patch.msgid.link/20260520060740.119554-8-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

...

This commit is contained in:

Rong Zhang 2026-05-20 06:07:40 +00:00 • committed by Ilpo Järvinen

parent 229e575451

commit 18a166d29a

No known key found for this signature in database

GPG key ID: 59AC4F6153E5CE31

3 changed files with 125 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/platform/x86/lenovo/Kconfig

View file

120

drivers/platform/x86/lenovo/wmi-capdata.c

View file

7

drivers/platform/x86/lenovo/wmi-capdata.h

View file