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pci_dev_put(9) [centos man page]

PCI_DEV_PUT(9)							Hardware Interfaces						    PCI_DEV_PUT(9)

NAME
pci_dev_put - release a use of the pci device structure SYNOPSIS
void pci_dev_put(struct pci_dev * dev); ARGUMENTS
dev device that's been disconnected DESCRIPTION
Must be called when a user of a device is finished with it. When the last user of the device calls this function, the memory of the device is freed. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 PCI_DEV_PUT(9)

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DEVICE_CREATE(9)					   Device drivers infrastructure					  DEVICE_CREATE(9)

NAME
device_create - creates a device and registers it with sysfs SYNOPSIS
struct device * device_create(struct class * class, struct device * parent, dev_t devt, void * drvdata, const char * fmt, ...); ARGUMENTS
class pointer to the struct class that this device should be registered to parent pointer to the parent struct device of this new device, if any devt the dev_t for the char device to be added drvdata the data to be added to the device for callbacks fmt string for the device's name ... variable arguments DESCRIPTION
This function can be used by char device classes. A struct device will be created in sysfs, registered to the specified class. A "dev" file will be created, showing the dev_t for the device, if the dev_t is not 0,0. If a pointer to a parent struct device is passed in, the newly created struct device will be a child of that device in sysfs. The pointer to the struct device will be returned from the call. Any further sysfs files that might be required can be created using this pointer. Returns struct device pointer on success, or ERR_PTR on error. NOTE
the struct class passed to this function must have previously been created with a call to class_create. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 DEVICE_CREATE(9)
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