diff --git a/init/README.ueventd.md b/init/README.ueventd.md
index 2401da3..3c7107a 100644
--- a/init/README.ueventd.md
+++ b/init/README.ueventd.md
@@ -147,6 +147,12 @@
 Ueventd will additionally log all messages sent to stderr from the external program to the serial
 console after the external program has exited.
 
+If the kernel command-line argument `firmware_class.path` is set, this path
+will be used first by the kernel to search for the firmware files. If found,
+ueventd will not be called at all. See the
+[kernel documentation](https://www.kernel.org/doc/html/v5.10/driver-api/firmware/fw_search_path.html)
+for more details on this feature.
+
 ## Coldboot
 --------
 Ueventd must create devices in `/dev` for all devices that have already sent their uevents before