1__ROOT_DEVICE_REGIST(9)  Device drivers infrastructure __ROOT_DEVICE_REGIST(9)
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NAME

6       __root_device_register - allocate and register a root device
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SYNOPSIS

9       struct device * __root_device_register(const char * name,
10                                              struct module * owner);
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ARGUMENTS

13       name
14           root device name
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16       owner
17           owner module of the root device, usually THIS_MODULE
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DESCRIPTION

20       This function allocates a root device and registers it using
21       device_register. In order to free the returned device, use
22       root_device_unregister.
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24       Root devices are dummy devices which allow other devices to be grouped
25       under /sys/devices. Use this function to allocate a root device and
26       then use it as the parent of any device which should appear under
27       /sys/devices/{name}
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29       The /sys/devices/{name} directory will also contain a 'module' symlink
30       which points to the owner directory in sysfs.
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32       Returns struct device pointer on success, or ERR_PTR on error.
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NOTE

35       You probably want to use root_device_register.
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38Kernel Hackers Manual 3.10         June 2019           __ROOT_DEVICE_REGIST(9)
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