diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/wmi.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/wmi.h b/include/linux/wmi.h index da94580572a9..2d242575a8b3 100644 --- a/include/linux/wmi.h +++ b/include/linux/wmi.h @@ -91,7 +91,7 @@ u8 wmidev_instance_count(struct wmi_device *wdev); * struct wmi_driver - WMI driver structure * @driver: Driver model structure * @id_table: List of WMI GUIDs supported by this driver - * @no_notify_data: Driver supports WMI events which provide no event data + * @min_event_size: Minimum event payload size supported by this driver * @no_singleton: Driver can be instantiated multiple times * @probe: Callback for device binding * @remove: Callback for device unbinding @@ -101,11 +101,14 @@ u8 wmidev_instance_count(struct wmi_device *wdev); * * This represents WMI drivers which handle WMI devices. The data inside the buffer * passed to the @notify_new callback is guaranteed to be aligned on a 8-byte boundary. + * The minimum supported size for said buffer can be specified using @min_event_size. + * WMI drivers that still use the deprecated @notify callback can still set @min_event_size + * to 0 in order to signal that they support WMI events which provide no event data. */ struct wmi_driver { struct device_driver driver; const struct wmi_device_id *id_table; - bool no_notify_data; + size_t min_event_size; bool no_singleton; int (*probe)(struct wmi_device *wdev, const void *context); |