diff options
Diffstat (limited to 'include/linux/mfd/cros_ec.h')
| -rw-r--r-- | include/linux/mfd/cros_ec.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index e44e3ec8a9c7..de8b588c8776 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -317,7 +317,9 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev); * @wake_event: Pointer to a bool set to true upon return if the event might be * treated as a wake event. Ignored if null. * - * Return: 0 on success or negative error code. + * Return: negative error code on errors; 0 for no data; or else number of + * bytes received (i.e., an event was retrieved successfully). Event types are + * written out to @ec_dev->event_data.event_type on success. */ int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event); @@ -329,7 +331,7 @@ int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event); * events raised and call the functions in the ec notifier. This function * is a helper to know which events are raised. * - * Return: 0 on success or negative error code. + * Return: 0 on error or non-zero bitmask of one or more EC_HOST_EVENT_*. */ u32 cros_ec_get_host_event(struct cros_ec_device *ec_dev); |