associating the device used to make the request as the device's parent.
The sysfs directory's file attributes are defined and controlled through
the new device's class (firmware_class) and group (fw_dev_attr_groups).
-This is actually where the original firmware_class.c file name comes from,
-as originally the only firmware loading mechanism available was the
-mechanism we now use as a fallback mechanism.
+This is actually where the original firmware_class module name came from,
+given that originally the only firmware loading mechanism available was the
+mechanism we now use as a fallback mechanism, which registers a struct class
+firmware_class. Because the attributes exposed are part of the module name, the
+module name firmware_class cannot be renamed in the future, to ensure backward
+compatibility with old userspace.
To load firmware using the sysfs interface we expose a loading indicator,
and a file upload firmware into: