diff options
| author | Mark Pearson <markpearson@lenovo.com> | 2021-08-16 20:15:01 -0400 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-08-18 09:41:14 +0200 |
| commit | f5bc0157be9baf1e2f12fb53f1e392b955e1c57f (patch) | |
| tree | 802929c67158da1e7195e49653cf9de7c6621cef /Documentation/ABI/testing/sysfs-class-firmware-attributes | |
| parent | 45b6f75eab6aabf9d88933830f41f532d39f38d2 (diff) | |
platform/x86: think-lmi: add debug_cmd
Many Lenovo BIOS's support the ability to send a debug command which
is useful for debugging and testing unreleased or early features.
Adding support for this feature as a module parameter.
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20210817001501.293501-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-firmware-attributes')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-firmware-attributes | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes index 0b43997b76e3..90fdf935aa5e 100644 --- a/Documentation/ABI/testing/sysfs-class-firmware-attributes +++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes @@ -272,3 +272,14 @@ Description: Note that any changes to this attribute requires a reboot for changes to take effect. + +What: /sys/class/firmware-attributes/*/attributes/debug_cmd +Date: July 2021 +KernelVersion: 5.14 +Contact: Mark Pearson <markpearson@lenovo.com> +Description: + This write only attribute can be used to send debug commands to the BIOS. + This should only be used when recommended by the BIOS vendor. Vendors may + use it to enable extra debug attributes or BIOS features for testing purposes. + + Note that any changes to this attribute requires a reboot for changes to take effect. |