Add ISACFGATTR_HINTS flag to allow detection of a device that was created

as a result of the hints mechanism.

sys/isa/isahint.c

@@ -78,6 +78,8 @@ isahint_add_device(device_t parent, const char *name, int unit)
 
 	if (resource_disabled(name, unit))
 		device_disable(child);
+
+	isa_set_configattr(child, (isa_get_configattr(child)|ISACFGATTR_HINTS));
 }
 
 static void

sys/isa/isavar.h

@@ -134,6 +134,7 @@ enum isa_device_ivars {
 #define ISACFGATTR_CANDISABLE	(1 << 0)	/* can be disabled */
 #define ISACFGATTR_DYNAMIC	(1 << 1)	/* dynamic configuration */
 #define ISACFGATTR_MULTI	(1 << 2)	/* multiple configurations */
+#define ISACFGATTR_HINTS	(1 << 3)	/* source of config is hints */
 
 /*
  * Simplified accessors for isa devices