# camera

### list() <sub>function</sub>

Return an array of available camera device IDs.



**Returns**: An array of camera IDs, or undefined if no cameras are available.


### open(id) <sub>function</sub>

Open a camera device with the given ID.



**id**: The camera ID to open.


**Returns**: A camera object on success, or throws an error if the camera cannot be opened.


### name(id) <sub>function</sub>

Return the name of the camera with the given ID.



**id**: The camera ID to query.


**Returns**: A string with the camera's name, or throws an error if the name cannot be retrieved.


### position(id) <sub>function</sub>

Return the physical position of the camera with the given ID.



**id**: The camera ID to query.


**Returns**: A string indicating the camera position ("unknown", "front", or "back").