WordPress at a glance
action is not described

atom_comments_ns action-hook . WP 2.8.0

Fires inside the feed tag in the Atom comment feed.

Usage

add_action( 'atom_comments_ns', 'action_function_name_797' );
function action_function_name_797(){
	// action...
}

Where the hook is called

In file: /wp-includes/feed-atom-comments.php
atom_comments_ns
wp-includes/feed-atom-comments.php 27
do_action( 'atom_comments_ns' );

Where the hook is used (in WP core)

Does not used.