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Name

Synopsis

#include <sys/conf.h>

#include <sys/ddi.h>

#include <sys/sunddi.h>

int ddi_dev_is_sid(dev_info_t *dip);

Interface Level

Arguments

dip

A pointer to the device’s dev_info structure.

Description

ddi_dev_is_sid() tells the caller whether the device described by dip is self-identifying, that is, a device that can unequivocally tell the system that it exists. This is useful for drivers that support both a self-identifying as well as a non-self-identifying variants of a device (and therefore must be probed).

Return Values

DDI_SUCCESS

Device is self-identifying.

DDI_FAILURE

Device is not self-identifying.

Context

Examples

 1  ...
 2  int
 3  bz_probe(dev_info_t *dip)
 4  {
 5      ...
 6      if (ddi_dev_is_sid(dip) == DDI_SUCCESS) {
 7          /*
 8           * This is the self-identifying version (OpenBoot).
 9           * No need to probe for it because we know it is there.
10           * The existence of dip && ddi_dev_is_sid() proves this.
11           */
12              return (DDI_PROBE_DONTCARE);
13      }
14      /*
15       * Not a self-identifying variant of the device. Now we have to
16       * do some work to see whether it is really attached to the
17       * system.
18       */
19  ...

See Also

Table of Contents

• Name
• Synopsis
• Interface Level
• Arguments
• Description
• Return Values
• Context
• Examples
• See Also