__ROOT_DEVICE_REGIST(9)           Device drivers infrastructure           __ROOT_DEVICE_REGIST(9)



NAME
       __root_device_register - allocate and register a root device

SYNOPSIS
       struct device * __root_device_register(const char * name, struct module * owner);

ARGUMENTS
       name
           root device name

       owner
           owner module of the root device, usually THIS_MODULE

DESCRIPTION
       This function allocates a root device and registers it using device_register. In order to
       free the returned device, use root_device_unregister.

       Root devices are dummy devices which allow other devices to be grouped under /sys/devices.
       Use this function to allocate a root device and then use it as the parent of any device
       which should appear under /sys/devices/{name}

       The /sys/devices/{name} directory will also contain a 'module' symlink which points to the
       owner directory in sysfs.

       Returns struct device pointer on success, or ERR_PTR on error.

NOTE
       You probably want to use root_device_register.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   __ROOT_DEVICE_REGIST(9)