DEVICE_ADD(9) Device drivers infrastructure DEVICE_ADD(9)
NAME
device_add - add device to device hierarchy.
SYNOPSIS
int device_add(struct device * dev);
ARGUMENTS
dev
device.
DESCRIPTION
This is part 2 of device_register, though may be called separately _iff_ device_initialize has been called separately.
This adds dev to the kobject hierarchy via kobject_add, adds it to the global and sibling lists for the device, then adds it to the other
relevant subsystems of the driver model.
Do not call this routine or device_register more than once for any device structure. The driver model core is not designed to work with
devices that get unregistered and then spring back to life. (Among other things, it's very hard to guarantee that all references to the
previous incarnation of dev have been dropped.) Allocate and register a fresh new struct device instead.
NOTE
_Never_ directly free dev after calling this function, even if it returned an error! Always use put_device to give up your reference
instead.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 DEVICE_ADD(9)
