1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
#include "StdAfx.h"
#include <iostream>
#include "Connection.h"
extern "C"{
#include "setupapi.h"
#include "hidsdi.h"
}
#pragma comment (lib, "hid.lib")
#pragma comment (lib, "setupAPI.lib")
struct {DWORD cbSize; char DevicePath[256];} FunctionClassDeviceData;
using namespace std;
Connection::Connection(void)
{
}
Connection::~Connection(void)
{
}
HANDLE Connection::connectToBoard(){
if (checkConnectionUSB() && h!=INVALID_HANDLE_VALUE){
cout<<"Plateau connecté en USB"<<endl;
}
else {
h = CreateFile("COM6",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL);
if (h!=INVALID_HANDLE_VALUE){
cout<<"Plateau connecté en BlueTooth"<<endl;
}
}
return h;
}
bool Connection::checkConnectionUSB(){
DWORD wmWritten;
char strData[] = "Test data written to explain the win32 file sample";
HANDLE HIDHandle;
bool success=false;
DWORD nbBytesReturned;
DWORD needed;
SP_DEVICE_INTERFACE_DETAIL_DATA buffer;
HIDD_ATTRIBUTES HIDAttributes;
HDEVINFO hDevInfo;
SP_DEVINFO_DATA DeviceInfoData;
SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
struct _GUID GUID;
HidD_GetHidGuid(&GUID);
DWORD i;
DWORD InterfaceNumber= 0;
// Create a HDEVINFO with all present devices.
hDevInfo = SetupDiGetClassDevs(&GUID,
0, // Enumerator
0,
DIGCF_PRESENT | DIGCF_INTERFACEDEVICE );
if (hDevInfo == INVALID_HANDLE_VALUE)
{
cout<<"SetupDiGetClassDevs a generer une erreur "<<endl;
// Insert error handling here.
return 1;
}
// Enumerate through all devices in Set.
DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,
&DeviceInfoData);i++)
{
DWORD DataT;
LPTSTR buffer = NULL;
DWORD buffersize = 0;
//
// Call function with null to begin with,
// then use the returned buffer size
// to Alloc the buffer. Keep calling until
// success or an unknown failure.
//
while (!SetupDiGetDeviceRegistryProperty(
hDevInfo,
&DeviceInfoData,
SPDRP_DEVICEDESC,
&DataT,
(PBYTE)buffer,
buffersize,
&buffersize))
{
if (GetLastError() ==
ERROR_INSUFFICIENT_BUFFER)
{
// Change the buffer size.
if (buffer) LocalFree(buffer);
buffer = (LPTSTR)LocalAlloc(LPTR,buffersize);
}
else
{
// Insert error handling here.
break;
}
}
_tprintf(TEXT("Device Number %i is: %s\n"),i, buffer);
if (buffer) LocalFree(buffer);
}
if ( GetLastError()!=NO_ERROR &&
GetLastError()!=ERROR_NO_MORE_ITEMS )
{
// Insert error handling here.
return false;
}
InterfaceNumber = 0; // this just returns the first one, you can iterate on this
for (InterfaceNumber=0;InterfaceNumber<8;InterfaceNumber++)
{
DeviceInterfaceData.cbSize = sizeof(DeviceInterfaceData);
if (SetupDiEnumDeviceInterfaces(hDevInfo,NULL,&GUID,InterfaceNumber,&DeviceInterfaceData))
{
printf("\nGot interface");
FunctionClassDeviceData.cbSize=5;
success=SetupDiGetDeviceInterfaceDetail(hDevInfo,&DeviceInterfaceData,(PSP_DEVICE_INTERFACE_DETAIL_DATA)(&FunctionClassDeviceData),256,&nbBytesReturned,NULL);
cout<<"SetupDiGetDeviceInterfaceDetail returns "<<success<< "codeError: "<< GetLastError()<<endl;
cout<<"nbBytesReturned= "<< nbBytesReturned<<endl;
cout<<"devicePath:"<<FunctionClassDeviceData.DevicePath<<endl;
if(success){
HIDHandle=CreateFile(FunctionClassDeviceData.DevicePath,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
cout<<"CreateFile returns "<<HIDHandle<< "codeError: "<< GetLastError()<<endl;
if (HIDHandle!=INVALID_HANDLE_VALUE){
success = HidD_GetAttributes(HIDHandle, &HIDAttributes);
cout<<"HidD_GetAttributes returns "<<success<< "codeError: "<< GetLastError()<<endl;
if (!success){
printf("Could not get HID attributes\n"); return false;
}
else{
if( HIDAttributes.VendorID == 0x4242 && HIDAttributes.ProductID == 0xee01 ){
cout<<"On a le device en USB "<<endl;
h = HIDHandle;
success= WriteFile(h,strData,(DWORD)(sizeof(strData)),&wmWritten,NULL);
cout<<"WriteFile returns "<<success<< " codeError: "<< GetLastError()<<endl;
return true;
}
}
}
}
}
else
{
printf("\nNo interface");
if ( GetLastError() == ERROR_NO_MORE_ITEMS) printf(", since there are no more items found.\n");
else printf(", unknown reason.\n");
}
}
cout<<"\nLe device n'est pas connecté par usb!\n"<<endl;
// Cleanup
SetupDiDestroyDeviceInfoList(hDevInfo);
return false;
} |
Soucis avec la fonction WriteFile de windows
Répondre avec citation
Partager