mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 10:29:37 +00:00
![Luis R. Rodriguez](/assets/img/avatar_default.png)
Understanding this code is getting out of control without any notes. Give the firmware_class driver a much needed documentation love, and while at it convert it to the new sphinx documentation format. v2: typos and small fixes Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
18 lines
775 B
ReStructuredText
18 lines
775 B
ReStructuredText
=====================
|
|
Firmware lookup order
|
|
=====================
|
|
|
|
Different functionality is available to enable firmware to be found.
|
|
Below is chronological order of how firmware will be looked for once
|
|
a driver issues a firmware API call.
|
|
|
|
* The ''Built-in firmware'' is checked first, if the firmware is present we
|
|
return it immediately
|
|
* The ''Firmware cache'' is looked at next. If the firmware is found we
|
|
return it immediately
|
|
* The ''Direct filesystem lookup'' is performed next, if found we
|
|
return it immediately
|
|
* If no firmware has been found and the fallback mechanism was enabled
|
|
the sysfs interface is created. After this either a kobject uevent
|
|
is issued or the custom firmware loading is relied upon for firmware
|
|
loading up to the timeout value.
|