diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h
index ac1bb318da..09b235f0b4 100644
--- a/include/qemu/qemu-plugin.h
+++ b/include/qemu/qemu-plugin.h
@@ -99,17 +99,36 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
                                            const qemu_info_t *info,
                                            int argc, char **argv);
 
-/*
- * Prototypes for the various callback styles we will be registering
- * in the following functions.
+/**
+ * typedef qemu_plugin_simple_cb_t - simple callback
+ * @id: the unique qemu_plugin_id_t
+ *
+ * This call-back passes no information aside from the unique @id.
  */
 typedef void (*qemu_plugin_simple_cb_t)(qemu_plugin_id_t id);
 
+/**
+ * typedef qemu_plugin_udata_cb_t - callback with user data
+ * @id: the unique qemu_plugin_id_t
+ * @userdata: a pointer to some user data supplied when the call-back
+ * was registered.
+ */
 typedef void (*qemu_plugin_udata_cb_t)(qemu_plugin_id_t id, void *userdata);
 
+/**
+ * typedef qemu_plugin_vcpu_simple_cb_t - vcpu callback
+ * @id: the unique qemu_plugin_id_t
+ * @vcpu_index: the current vcpu context
+ */
 typedef void (*qemu_plugin_vcpu_simple_cb_t)(qemu_plugin_id_t id,
                                              unsigned int vcpu_index);
 
+/**
+ * typedef qemu_plugin_vcpu_udata_cb_t - vcpu callback
+ * @vcpu_index: the current vcpu context
+ * @userdata: a pointer to some user data supplied when the call-back
+ * was registered.
+ */
 typedef void (*qemu_plugin_vcpu_udata_cb_t)(unsigned int vcpu_index,
                                             void *userdata);