+/**
+ * Describes a data sink for audio streams.
+ *
+ * A paraslash writer obtains data via the buffer tree mechanism from its
+ * parent node. It consumes data without producing output on its own.
+ *
+ * This structure contains the methods which have to be implemented by each
+ * writer.
+ *
+ * \sa struct \ref writer_node, struct \ref receiver, struct \ref filter,
+ * struct \ref sched.
+ */