112 /* * Machine-dependent code provides a list of these to describe * devices on the ISA bus which should be attached via direct * configuration. * * All of this information is dynamically allocated, so that * the ISA bus driver may free all of this information if the * bus does not support dynamic attach/detach of devices (e.g. * on a docking station). * * Some info on the "ik_key" field: This is a unique number for * each knowndev node. If, when we need to re-enumerate the * knowndevs, we discover that a node with key N is in the old * list but not in the new, the device has disappeared. Similarly, * if a node with key M is in the new list but not in the old, * the device is new. Note that the knowndevs list must be * sorted in ascending "key" order. */