Document firmware_class.path
This kernel command-line parameter may be used to alter the loading of
firmware.
Bug: 222166126
Test: n/a
Change-Id: I6dc1ae92694cf08b11ab6c3c41aa3d62c992a72a
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