ddi_dev_nregs(9F)

NAME

ddi_dev_nregs − return the number of register sets a device has

#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dev_nregs(dev_info_t ∗dip, int ∗resultp);

Solaris DDI specific (Solaris DDI).

dip A pointer to the device’s dev_info structure.

resultp Pointer to an integer that holds the number of register sets on return.

The function ddi_dev_nregs() returns the number of sets of registers the device has.

ddi_dev_nregs() returns:

DDI_SUCCESS
A successful return. The number of register sets is returned in resultp.

DDI_FAILURE
The device has no registers.

ddi_dev_nregs() can be called from user or interrupt context.