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Document firmware_class.path

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This kernel command-line parameter may be used to alter the loading of
firmware.

Bug: 222166126
Test: n/a
Change-Id: I6dc1ae92694cf08b11ab6c3c41aa3d62c992a72a
This commit is contained in:
Thiébaud Weksteen 2022-03-03 12:13:47 +11:00
parent 0326984c42
commit 87050874bd
1 changed files with 6 additions and 0 deletions
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6
init/README.ueventd.md
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@ -147,6 +147,12 @@ directories. If stdout cannot be read, or the program returns with any exit code
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