* wireless extensions but this is subject to reevaluation as soon as this
* code is used more widely and we have a first user without wext.
*
- * @add_virtual_intf: create a new virtual interface with the given name
+ * @add_virtual_intf: create a new virtual interface with the given name,
+ * must set the struct wireless_dev's iftype.
*
* @del_virtual_intf: remove the virtual interface determined by ifindex.
*
- * @change_virtual_intf: change type of virtual interface
+ * @change_virtual_intf: change type/configuration of virtual interface,
+ * keep the struct wireless_dev's iftype updated.
*
* @add_key: add a key with the given parameters. @mac_addr will be %NULL
* when adding a group key.