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1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _USB_H_
30 #define _USB_H_
31 
32 #if defined(__cplusplus)
33 extern "C" {
34 #endif
35 
36 typedef struct usb_handle usb_handle;
37 
38 typedef struct usb_ifc_info usb_ifc_info;
39 
40 struct usb_ifc_info
41 {
42         /* from device descriptor */
43     unsigned short dev_vendor;
44     unsigned short dev_product;
45 
46     unsigned char dev_class;
47     unsigned char dev_subclass;
48     unsigned char dev_protocol;
49 
50     unsigned char ifc_class;
51     unsigned char ifc_subclass;
52     unsigned char ifc_protocol;
53 
54     unsigned char has_bulk_in;
55     unsigned char has_bulk_out;
56 
57     unsigned char writable;
58 
59     char serial_number[256];
60     char device_path[256];
61 };
62 
63 typedef int (*ifc_match_func)(usb_ifc_info *ifc);
64 
65 usb_handle *usb_open(ifc_match_func callback);
66 int usb_close(usb_handle *h);
67 int usb_read(usb_handle *h, void *_data, int len);
68 int usb_write(usb_handle *h, const void *_data, int len);
69 int usb_wait_for_disconnect(usb_handle *h);
70 
71 #if defined(__cplusplus)
72 }
73 #endif
74 
75 #endif
76