source: mainline/uspace/lib/c/include/io/chardev.h@ 1afa94d

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1afa94d was 5d50c419, checked in by Jiri Svoboda <jiri@…>, 8 years ago

Chardev API should separate error code from number of bytes transferred. This is cleaner, allows the code to be more independent of Exxx sign and allows for partial success (some bytes successfully transferred and then an error occurred.)

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2011 Jan Vesely
3 * Copyright (c) 2017 Jiri Svoboda
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29/** @addtogroup libc
30 * @{
31 */
32
33#ifndef LIBC_IO_CHARDEV_H_
34#define LIBC_IO_CHARDEV_H_
35
36#include <async.h>
37#include <stddef.h>
38
39typedef struct {
40 async_sess_t *sess;
41} chardev_t;
42
43extern int chardev_open(async_sess_t *, chardev_t **);
44extern void chardev_close(chardev_t *);
45extern int chardev_read(chardev_t *, void *, size_t, size_t *);
46extern int chardev_write(chardev_t *, const void *, size_t, size_t *);
47
48#endif
49/**
50 * @}
51 */
Note: See TracBrowser for help on using the repository browser.