libcamera: camera configuration: Add at() function in doc

The documentation suggests to use CameraConfiguration::operator[] to
access the StreamConfiguration it contains, but as CameraConfiguration
instances are generated by the Camera class and are returned wrapped in
a unique_ptr<>, the usage of operator[] would require an awkward syntax such
as (*config)[i].

Better to suggest the usage of the CameraConfiguration::at() function
instead to access the StreamConfigurations.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index c20e0501..98438312 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -114,9 +114,9 @@ LOG_DECLARE_CATEGORY(Camera)
  * The CameraConfiguration holds an ordered list of stream configurations. It
  * supports iterators and operates as a vector of StreamConfiguration instances.
  * The stream configurations are inserted by addConfiguration(), and the
- * operator[](int) returns a reference to the StreamConfiguration based on its
- * insertion index. Accessing a stream configuration with an invalid index
- * results in undefined behaviour.
+ * at() function or operator[] return a reference to the StreamConfiguration
+ * based on its insertion index. Accessing a stream configuration with an
+ * invalid index results in undefined behaviour.
  *
  * CameraConfiguration instances are retrieved from the camera with
  * Camera::generateConfiguration(). Applications may then inspect the