device_register(9) - phpMan
DEVICE_REGISTER(9) Device drivers infrastructure DEVICE_REGISTER(9)
NAME
device_register - register a device with the system.
SYNOPSIS
int device_register(struct device * dev);
ARGUMENTS
dev
pointer to the device structure
DESCRIPTION
This happens in two clean steps - initialize the device and add it to the system. The two
steps can be called separately, but this is the easiest and most common. I.e. you should
only call the two helpers separately if have a clearly defined need to use and refcount
the device before it is added to the hierarchy.
For more information, see the kerneldoc for device_initialize and device_add.
NOTE
_Never_ directly free dev after calling this function, even if it returned an error!
Always use put_device to give up the reference initialized in this function instead.
COPYRIGHT
Kernel Hackers Manual 4.8. January 2017 DEVICE_REGISTER(9)
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