MFC USB通信枚举HID设备出现一大堆VID和PID一样的设备

2018-08-01 03:09:37 1.2k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

基于Visual C++的USB HID设备检测与信息提取实战指南 USB HID（人机接口设备）协议是计算机与键盘、鼠标、游戏手柄等外设通信的通用标准，其核心在于通过标准化的报告描述符定义数据传输格式。在Windows平台下，开发者可以通过SetupAPI和Hid.dll这一原生组合，深入系统底层实现设备的枚举与通信。这种技术方案的价值在于能够直接获取设备的VID/PID、报告描述符等关键信息，无需依赖第三方驱动，为嵌入式调试、外设测试和自动化控制提供了稳定可靠的基础。在应用场景上，无论是开发USB设备配置工具、构建自动化测试框架，还是进行硬件逆向分析，掌握HID设备检测阅读详情

最近在做一个usb通信的工程，搜了一下资料，大概是HID类设备的写法。

枚举USB设备的函数如下

m_combobox.ResetContent();

	SP_DEVINFO_DATA DeviceInfoData;

	SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;

	PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData;

	//get device id

	GUID deviceId;

	

	HidD_GetHidGuid(&deviceId);

	//get device info

	HDEVINFO handle;

	handle = SetupDiGetClassDevs(&deviceId, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

	

	bool result1 = false;

	bool result2 = false;

	DWORD strSize = 0;

	DWORD requiredSize = 0;

	CString temp;

	int countNum = 0;

	DWORD dwError;

	do 

	{

		DeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);

		result1 = SetupDiEnumDeviceInterfaces(handle, NULL, &deviceId, countNum, &DeviceInterfaceData);

		if (result1 == FALSE)

		{

			dwError = GetLastError();

			break;

			

		}

		SetupDiGetDeviceInterfaceDetail(handle, &DeviceInterfaceData, NULL, 0, &strSize, NULL);

		requiredSize = strSize;

		DeviceInterfaceDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(requiredSize);

		DeviceInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);

		DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);

		result2 = SetupDiGetDeviceInterfaceDetail(handle, &DeviceInterfaceData, DeviceInterfaceDetailData,

			strSize, &requiredSize, &DeviceInfoData);

		temp = DeviceInterfaceDetailData->DevicePath;

		UpdateData(FALSE);

		m_combobox.AddString(temp);

		countNum++;

		free(DeviceInterfaceDetailData);

	} while (result1);

m_combobox是一个combobox按钮绑定的变量。

这段代码能枚举出来设备，只不过结果我有点不太理解。

里面的vid和pid全都一样，第一个是我的键盘，下面那些都是设备管理器里的人体输入学设备和通用串行总线控制器里的东西。
我想要的就是那个键盘，代码哪里有问题？

...全文

告别串口调试！手把手教你用MFC打造多功能USB通讯助手（支持HID协议）本文详细介绍了如何基于MFC框架开发支持HID协议的USB通讯助手，替代传统串口调试方案。通过设备枚举、批量传输配置和错误重试机制实现，展示了USB-HID在工业环境中的高带宽、即插即用等优势，并提供热插拔处理和传输速率测试等实用功能开发指南。阅读详情

为天下苍生拔剑

VC/MFC 16,550 成员 421,606 内容

+ 关注 + 加入社区

切换为时间正序

songyachao 2018-10-15

打赏
举报

引用 11 楼 wangyiyu3 的回复:

[quote=引用 10 楼 songyachao 的回复:]

int CTestapiDlg::JudgeHid(void)
{
BOOL res;
int finddevice=0;
// Windows objects for interacting with the driver.
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
SP_DEVINFO_DATA devinfo_data;
SP_DEVICE_INTERFACE_DATA device_interface_data;
SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
HDEVINFO device_info_set = INVALID_HANDLE_VALUE;
int device_index = 0;

// Initialize the Windows objects.
devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);

// Get information for all the devices belonging to the HID class.
device_info_set = SetupDiGetClassDevs(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

// Iterate over each device in the HID class, looking for the right one.

for (;;) {
HANDLE write_handle = INVALID_HANDLE_VALUE;
DWORD required_size = 0;
//HIDD_ATTRIBUTES attrib;

res = SetupDiEnumDeviceInterfaces(device_info_set,
NULL,
&InterfaceClassGuid,
device_index,
&device_interface_data);

if (!res) {
// A return of FALSE from this function means that
// there are no more devices.
break;
}

// Call with 0-sized detail size, and let the function
// tell us how long the detail struct needs to be. The
// size is put in &required_size.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
NULL,
0,
&required_size,
NULL);

// Allocate a long enough structure for device_interface_detail_data.
device_interface_detail_data = (SP_DEVICE_INTERFACE_DETAIL_DATA_A*) malloc(required_size);
device_interface_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);

// Get the detailed data for this device. The detail data gives us
// the device path for this device, which is then passed into
// CreateFile() to get a handle to the device.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
device_interface_detail_data,
required_size,
NULL,
NULL);

if (!res) {
//register_error(dev, "Unable to call SetupDiGetDeviceInterfaceDetail");
// Continue to the next device.
goto cont;
}

if (strstr(device_interface_detail_data->DevicePath,"vid_b111&pid_a111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "a111");
SetDlgItemText(IDC_STATIC_VID, "b111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else if(strstr(device_interface_detail_data->DevicePath,"vid_c111&pid_d111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "d111");
SetDlgItemText(IDC_STATIC_VID, "c111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else
{
SetDlgItemText(IDC_STATIC_PID, "");
SetDlgItemText(IDC_STATIC_VID, "");
hidpos_connect_num = 0;
}
//wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);

// Open a handle to the device

cont:
// We no longer need the detail data. It can be freed
free(device_interface_detail_data);

device_index++;

}

// Close the device information handle.
SetupDiDestroyDeviceInfoList(device_info_set);

return finddevice;

}

GUID InterfaceClassGuid这个值是怎么来的？代表什么？[/quote]
关于GUID 了解一下 https://blog.csdn.net/eric422113/article/details/6607052

songyachao 2018-09-28

打赏
举报

int CTestapiDlg::JudgeHid(void)
{
BOOL res;
int finddevice=0;
// Windows objects for interacting with the driver.
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
SP_DEVINFO_DATA devinfo_data;
SP_DEVICE_INTERFACE_DATA device_interface_data;
SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
HDEVINFO device_info_set = INVALID_HANDLE_VALUE;
int device_index = 0;

// Initialize the Windows objects.
devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);

// Get information for all the devices belonging to the HID class.
device_info_set = SetupDiGetClassDevs(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

// Iterate over each device in the HID class, looking for the right one.

for (;;) {
HANDLE write_handle = INVALID_HANDLE_VALUE;
DWORD required_size = 0;
//HIDD_ATTRIBUTES attrib;

res = SetupDiEnumDeviceInterfaces(device_info_set,
NULL,
&InterfaceClassGuid,
device_index,
&device_interface_data);

if (!res) {
// A return of FALSE from this function means that
// there are no more devices.
break;
}

// Call with 0-sized detail size, and let the function
// tell us how long the detail struct needs to be. The
// size is put in &required_size.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
NULL,
0,
&required_size,
NULL);

// Allocate a long enough structure for device_interface_detail_data.
device_interface_detail_data = (SP_DEVICE_INTERFACE_DETAIL_DATA_A*) malloc(required_size);
device_interface_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);

// Get the detailed data for this device. The detail data gives us
// the device path for this device, which is then passed into
// CreateFile() to get a handle to the device.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
device_interface_detail_data,
required_size,
NULL,
NULL);

if (!res) {
//register_error(dev, "Unable to call SetupDiGetDeviceInterfaceDetail");
// Continue to the next device.
goto cont;
}

if (strstr(device_interface_detail_data->DevicePath,"vid_b111&pid_a111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "a111");
SetDlgItemText(IDC_STATIC_VID, "b111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else if(strstr(device_interface_detail_data->DevicePath,"vid_c111&pid_d111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "d111");
SetDlgItemText(IDC_STATIC_VID, "c111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else
{
SetDlgItemText(IDC_STATIC_PID, "");
SetDlgItemText(IDC_STATIC_VID, "");
hidpos_connect_num = 0;
}
//wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);

// Open a handle to the device

cont:
// We no longer need the detail data. It can be freed
free(device_interface_detail_data);

device_index++;

}

// Close the device information handle.
SetupDiDestroyDeviceInfoList(device_info_set);

return finddevice;

}

为天下苍生拔剑 2018-09-28

打赏
举报

引用 10 楼 songyachao 的回复:

int CTestapiDlg::JudgeHid(void)
{
BOOL res;
int finddevice=0;
// Windows objects for interacting with the driver.
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
SP_DEVINFO_DATA devinfo_data;
SP_DEVICE_INTERFACE_DATA device_interface_data;
SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
HDEVINFO device_info_set = INVALID_HANDLE_VALUE;
int device_index = 0;

// Initialize the Windows objects.
devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);

// Get information for all the devices belonging to the HID class.
device_info_set = SetupDiGetClassDevs(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

// Iterate over each device in the HID class, looking for the right one.

for (;;) {
HANDLE write_handle = INVALID_HANDLE_VALUE;
DWORD required_size = 0;
//HIDD_ATTRIBUTES attrib;

res = SetupDiEnumDeviceInterfaces(device_info_set,
NULL,
&InterfaceClassGuid,
device_index,
&device_interface_data);

if (!res) {
// A return of FALSE from this function means that
// there are no more devices.
break;
}

// Call with 0-sized detail size, and let the function
// tell us how long the detail struct needs to be. The
// size is put in &required_size.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
NULL,
0,
&required_size,
NULL);

// Allocate a long enough structure for device_interface_detail_data.
device_interface_detail_data = (SP_DEVICE_INTERFACE_DETAIL_DATA_A*) malloc(required_size);
device_interface_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);

// Get the detailed data for this device. The detail data gives us
// the device path for this device, which is then passed into
// CreateFile() to get a handle to the device.
res = SetupDiGetDeviceInterfaceDetail(device_info_set,
&device_interface_data,
device_interface_detail_data,
required_size,
NULL,
NULL);

if (!res) {
//register_error(dev, "Unable to call SetupDiGetDeviceInterfaceDetail");
// Continue to the next device.
goto cont;
}

if (strstr(device_interface_detail_data->DevicePath,"vid_b111&pid_a111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "a111");
SetDlgItemText(IDC_STATIC_VID, "b111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else if(strstr(device_interface_detail_data->DevicePath,"vid_c111&pid_d111")!=NULL)
{
finddevice = 1;
//PID,VID添加到标签控件
SetDlgItemText(IDC_STATIC_PID, "d111");
SetDlgItemText(IDC_STATIC_VID, "c111");
free(device_interface_detail_data);
hidpos_connect_num ++;
break;
}
else
{
SetDlgItemText(IDC_STATIC_PID, "");
SetDlgItemText(IDC_STATIC_VID, "");
hidpos_connect_num = 0;
}
//wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);

// Open a handle to the device

cont:
// We no longer need the detail data. It can be freed
free(device_interface_detail_data);

device_index++;

}

// Close the device information handle.
SetupDiDestroyDeviceInfoList(device_info_set);

return finddevice;

}