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xenbus_comms.h revision 1.1 
      1 /*
      2  * Private include for xenbus communications.
      3  *
      4  * Copyright (C) 2005 Rusty Russell, IBM Corporation
      5  *
      6  * This file may be distributed separately from the Linux kernel, or
      7  * incorporated into other software packages, subject to the following license:
      8  *
      9  * Permission is hereby granted, free of charge, to any person obtaining a copy
     10  * of this source file (the "Software"), to deal in the Software without
     11  * restriction, including without limitation the rights to use, copy, modify,
     12  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
     13  * and to permit persons to whom the Software is furnished to do so, subject to
     14  * the following conditions:
     15  *
     16  * The above copyright notice and this permission notice shall be included in
     17  * all copies or substantial portions of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     22  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     24  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     25  * IN THE SOFTWARE.
     26  */
     27 
     28 #ifndef _XENBUS_COMMS_H
     29 #define _XENBUS_COMMS_H
     30 
     31 int xs_init(void);
     32 int xb_init_comms(void);
     33 
     34 /* Low level routines. */
     35 int xb_write(const void *data, unsigned len);
     36 int xb_read(void *data, unsigned len);
     37 int xs_input_avail(void);
     38 extern wait_queue_head_t xb_waitq;
     39 
     40 #endif /* _XENBUS_COMMS_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