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Diffstat (limited to 'drivers/iio/industrialio-event.c')
-rw-r--r--drivers/iio/industrialio-event.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 52d4fcb0d..cae332b1d 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -32,6 +32,7 @@
* @dev_attr_list: list of event interface sysfs attribute
* @flags: file operations related flags including busy flag.
* @group: event interface sysfs attribute group
+ * @read_lock: lock to protect kfifo read operations
*/
struct iio_event_interface {
wait_queue_head_t wait;
@@ -75,6 +76,11 @@ EXPORT_SYMBOL(iio_push_event);
/**
* iio_event_poll() - poll the event queue to find out if it has data
+ * @filep: File structure pointer to identify the device
+ * @wait: Poll table pointer to add the wait queue on
+ *
+ * Return: (POLLIN | POLLRDNORM) if data is available for reading
+ * or a negative error code on failure
*/
static unsigned int iio_event_poll(struct file *filep,
struct poll_table_struct *wait)