diff options
| author | Armin Wolf <W_Armin@gmx.de> | 2023-04-30 22:31:52 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-05-09 12:07:25 +0200 |
| commit | 2a2b13ae50cf70e07b471301ff50299f31d81c1d (patch) | |
| tree | dc0a47eea618886daa8bf328590039b21874c738 /include/linux/acpi.h | |
| parent | 24f7b9a0650561cea1a20e54f8a55522cbff10ab (diff) | |
platform/x86: wmi: Allow retrieving the number of WMI object instances
Currently, the WMI driver core knows how many instances of a given
WMI object exist, but WMI drivers cannot access this information.
At the same time, some current and upcoming WMI drivers want to
have access to this information. Add wmi_instance_count() and
wmidev_instance_count() to allow WMI drivers to get the number of
WMI object instances.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230430203153.5587-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 7b71dd74baeb..5b9353f56928 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -414,6 +414,8 @@ extern bool acpi_is_pnp_device(struct acpi_device *); typedef void (*wmi_notify_handler) (u32 value, void *context); +int wmi_instance_count(const char *guid); + extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, u32 method_id, const struct acpi_buffer *in, |