diff --git a/sound/firewire/fcp.c b/sound/firewire/fcp.c
index d48e326567c8bb18566550f7d79d98763d349980..0619597e3a3f250b5e5b40d07d6c0e68de1a8ccb 100644
--- a/sound/firewire/fcp.c
+++ b/sound/firewire/fcp.c
@@ -218,8 +218,6 @@ struct fcp_transaction {
  *
  * @command and @response can point to the same buffer.
  *
- * Asynchronous operation (INTERIM, NOTIFY) is not supported at the moment.
- *
  * Returns the actual size of the response frame, or a negative error code.
  */
 int fcp_avc_transaction(struct fw_unit *unit,