Function resource_find_dev

freebsd/kern/subr_hints.c:459–475

* err = resource_find_dev(&anchor, name, &unit, res, value); * Iterate through a list of devices, returning their unit numbers. * res and value are optional restrictions. eg: "at", "scbus0". * *unit is set to the value. * set *anchor to zero before starting. */

 * set *anchor to zero before starting.
 */
int
resource_find_dev(int *anchor, const char *name, int *unit,
    const char *resname, const char *value)
{
	int found_unit;
	int newln;
	int ret;

	newln = *anchor;
	ret = resource_find(anchor, &newln, name, NULL, resname, value,
	    NULL, NULL, &found_unit, NULL, NULL, NULL);
	if (ret == 0) {
		*unit = found_unit;
	}
	*anchor = newln;
	return ret;
}

/*
 * Check to see if a device is disabled via a disabled hint.