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

6       device_add - add device to device hierarchy.
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SYNOPSIS

9       int device_add(struct device * dev);
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ARGUMENTS

12       dev
13           device.
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DESCRIPTION

16       This is part 2 of device_register, though may be called separately
17       _iff_ device_initialize has been called separately.
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19       This adds dev to the kobject hierarchy via kobject_add, adds it to the
20       global and sibling lists for the device, then adds it to the other
21       relevant subsystems of the driver model.
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23       Do not call this routine or device_register more than once for any
24       device structure. The driver model core is not designed to work with
25       devices that get unregistered and then spring back to life. (Among
26       other things, it's very hard to guarantee that all references to the
27       previous incarnation of dev have been dropped.) Allocate and register a
28       fresh new struct device instead.
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NOTE

31       _Never_ directly free dev after calling this function, even if it
32       returned an error! Always use put_device to give up your reference
33       instead.
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36Kernel Hackers Manual 3.10         June 2019                     DEVICE_ADD(9)
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