tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1=====================
2Firmware search paths
3=====================
4
5The following search paths are used to look for firmware on your
6root filesystem.
7
8* fw_path_para - module parameter - default is empty so this is ignored
9* /lib/firmware/updates/UTS_RELEASE/
10* /lib/firmware/updates/
11* /lib/firmware/UTS_RELEASE/
12* /lib/firmware/
13
14The module parameter ''path'' can be passed to the firmware_class module
15to activate the first optional custom fw_path_para. The custom path can
16only be up to 256 characters long. The kernel parameter passed would be:
17
18* 'firmware_class.path=$CUSTOMIZED_PATH'
19
20There is an alternative to customize the path at run time after bootup, you
21can use the file:
22
23* /sys/module/firmware_class/parameters/path
24
25You would echo into it your custom path and firmware requested will be
26searched for there first.