DDI_DEV_NINTRS(9F) Kernel Functions for Drivers DDI_DEV_NINTRS(9F)

NAME

ddi_dev_nintrs - return the number of interrupt specifications a
device has

SYNOPSIS

#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>


int ddi_dev_nintrs(dev_info_t *dip, int *resultp);

INTERFACE LEVEL

illumos DDI specific (illumos DDI). This interface is obsolete. Use
the new interrupt interfaces referenced in Intro(9F). Refer to
Writing Device Drivers for more information.

DESCRIPTION

The ddi_dev_nintrs() function returns the number of interrupt
specifications a device has in *resultp.

RETURN VALUES

The ddi_dev_nintrs() function returns:

DDI_SUCCESS
A successful return. The number of interrupt
specifications that the device has is set in resultp.


DDI_FAILURE
The device has no interrupt specifications.

CONTEXT

The ddi_dev_nintrs() function can be called from user, interrupt, or
kernel context.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Obsolete |
+--------------------+-----------------+

SEE ALSO

isa(5), Intro(9F), ddi_add_intr(9F), ddi_dev_nregs(9F),
ddi_dev_regsize(9F)


Writing Device Drivers

March 6, 2023 DDI_DEV_NINTRS(9F)