device_get_ivars9
Access bus private variables
Usage
#include <sys/param.h>
#include <sys/bus.h>
void *
device_get_ivars(device_t dev);
void
device_set_ivars(device_t dev, void *ivar);
Overview
The device_get_ivars() function returns the bus-specific instance variables of a device.
The device_set_ivars() function sets the bus-specific instance variables of a device.
Typically, only bus drivers will use these functions. The kernel assumes that the bus driver will manage this memory, and no automatic memory allocation or deallocation happens. Client drivers should access ivars through the BUS_READ_IVAR(9) interface instead.