1/*****************************************************************************
2 * xenbus.h
3 *
4 * Xenbus protocol details.
5 *
6 * Copyright (C) 2005 XenSource Ltd.
7 */
8
9#ifndef _XEN_PUBLIC_IO_XENBUS_H
10#define _XEN_PUBLIC_IO_XENBUS_H
11
12/* The state of either end of the Xenbus, i.e. the current communication
13   status of initialisation across the bus.  States here imply nothing about
14   the state of the connection between the driver and the kernel's device
15   layers.  */
16enum xenbus_state
17{
18	XenbusStateUnknown      = 0,
19	XenbusStateInitialising = 1,
20	XenbusStateInitWait     = 2,  /* Finished early
21					 initialisation, but waiting
22					 for information from the peer
23					 or hotplug scripts. */
24	XenbusStateInitialised  = 3,  /* Initialised and waiting for a
25					 connection from the peer. */
26	XenbusStateConnected    = 4,
27	XenbusStateClosing      = 5,  /* The device is being closed
28					 due to an error or an unplug
29					 event. */
30	XenbusStateClosed       = 6,
31
32	/*
33	* Reconfiguring: The device is being reconfigured.
34	*/
35	XenbusStateReconfiguring = 7,
36
37	XenbusStateReconfigured  = 8
38};
39
40#endif /* _XEN_PUBLIC_IO_XENBUS_H */
41
42/*
43 * Local variables:
44 *  c-file-style: "linux"
45 *  indent-tabs-mode: t
46 *  c-indent-level: 8
47 *  c-basic-offset: 8
48 *  tab-width: 8
49 * End:
50 */
51