| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | ===================== |
| 2 | Firmware search paths |
| 3 | ===================== |
| 4 | |
| 5 | The following search paths are used to look for firmware on your |
| 6 | root 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 | |
| 14 | The module parameter ''path'' can be passed to the firmware_class module |
| 15 | to activate the first optional custom fw_path_para. The custom path can |
| 16 | only be up to 256 characters long. The kernel parameter passed would be: |
| 17 | |
| 18 | * 'firmware_class.path=$CUSTOMIZED_PATH' |
| 19 | |
| 20 | There is an alternative to customize the path at run time after bootup, you |
| 21 | can use the file: |
| 22 | |
| 23 | * /sys/module/firmware_class/parameters/path |
| 24 | |
| 25 | You would echo into it your custom path and firmware requested will be |
| 26 | searched for there first. |