generic_hid_vb下载

weixin_39821260 2019-07-11 10:00:14

generic hid control,find your HID device and your can read and write command to test.
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generic hid control,find your HID device and your can read and write command to test.

利用USB接口进行通信的数据源码MemberIndex = 0 Do 'The cbSize element of the MyDeviceInterfaceData structure must be set to 'the structure's size in bytes. The size is 28 bytes. MyDeviceInterfaceData.cbSize = LenB(MyDeviceInterfaceData) Result = SetupDiEnumDeviceInterfaces _ (DeviceInfoSet, _ 0, _ HidGuid, _ MemberIndex, _ MyDeviceInterfaceData) Call DisplayResultOfAPICall("SetupDiEnumDeviceInterfaces") If Result = 0 Then LastDevice = True 'If a device exists, display the information returned. If Result <> 0 Then lstResults.AddItem " DeviceInfoSet for device #" & CStr(MemberIndex) & ": " lstResults.AddItem " cbSize = " & CStr(MyDeviceInterfaceData.cbSize) lstResults.AddItem _ " InterfaceClassGuid.Data1 = " & Hex$(MyDeviceInterfaceData.InterfaceClassGuid.Data1) lstResults.AddItem _ " InterfaceClassGuid.Data2 = " & Hex$(MyDeviceInterfaceData.InterfaceClassGuid.Data2) lstResults.AddItem _ " InterfaceClassGuid.Data3 = " & Hex$(MyDeviceInterfaceData.InterfaceClassGuid.Data3) lstResults.AddItem _ " Flags = " & Hex$(MyDeviceInterfaceData.Flags) '****************************************************************************** 'SetupDiGetDeviceInterfaceDetail 'Returns: an SP_DEVICE_INTERFACE_DETAIL_DATA structure 'containing information about a device. 'To retrieve the information, call this function twice. 'The first time returns the size of the structure in Needed. 'The second time returns a pointer to the data in DeviceInfoSet. 'Requires: 'A DeviceInfoSet returned by SetupDiGetClassDevs and 'an SP_DEVICE_INTERFACE_DATA structure returned by SetupDiEnumDeviceInterfaces. '******************************************************************************* MyDeviceInfoData.cbSize = Len(MyDeviceInfoData) Result = SetupDiGetDeviceInterfaceDetail _ (DeviceInfoSet, _ MyDeviceInterfaceData, _ 0, _ 0, _ Needed, _ 0) DetailData = Needed Call DisplayResultOfAPICall("SetupDiGetDeviceInterfaceDetail") lstResults.AddItem " (OK to say too small)" lstResults.AddItem " Required buffer size for the data: " & Needed 'Store the structure's size. MyDeviceInterfaceDetailData.cbSize = _ Len(MyDeviceInterfaceDetailData) 'Use a byte array to allocate memory for 'the MyDeviceInterfaceDetailData structure ReDim DetailDataBuffer(Needed) 'Store cbSize in the first four bytes of the array. Call RtlMoveMemory _ (DetailDataBuffer(0), _ MyDeviceInterfaceDetailData, _ 4) 'Call SetupDiGetDeviceInterfaceDetail again. 'This time, pass the address of the first element of DetailDataBuffer 'and the returned required buffer size in DetailData. Result = SetupDiGetDeviceInterfaceDetail _ (DeviceInfoSet, _ MyDeviceInterfaceData, _ VarPtr(DetailDataBuffer(0)), _ DetailData, _ Needed, _ 0) Call DisplayResultOfAPICall(" Result of second call: ") lstResults.AddItem " MyDeviceInterfaceDetailData.cbSize: " & _ CStr(MyDeviceInterfaceDetailData.cbSize) 'Convert the byte array to a string. DevicePathName = CStr(DetailDataBuffer()) 'Convert to Unicode. DevicePathName = StrConv(DevicePathName, vbUnicode) 'Strip cbSize (4 bytes) from the beginning. DevicePathName = Right$(DevicePathName, Len(DevicePathName) - 4) lstResults.AddItem " Device pathname: " lstResults.AddItem " " & DevicePathName '****************************************************************************** 'CreateFile 'Returns: a handle that enables reading and writing to the device. 'Requires: 'The DevicePathName returned by SetupDiGetDeviceInterfaceDetail. '****************************************************************************** HidDevice = CreateFile _ (DevicePathName, _ GENERIC_READ Or GENERIC_WRITE, _ (FILE_SHARE_READ Or FILE_SHARE_WRITE), _ 0, _ OPEN_EXISTING, _ 0, _ 0) Call DisplayResultOfAPICall("CreateFile") lstResults.AddItem " Returned handle: " & Hex$(HidDevice) & "h" 'Now we can find out if it's the device we're looking for. '****************************************************************************** 'HidD_GetAttributes 'Requests information from the device. 'Requires: The handle returned by CreateFile. 'Returns: an HIDD_ATTRIBUTES structure containing 'the Vendor ID, Product ID, and Product Version Number. 'Use this information to determine if the detected device 'is the one we're looking for. '****************************************************************************** 'Set the Size property to the number of bytes in the structure. DeviceAttributes.Size = LenB(DeviceAttributes) Result = HidD_GetAttributes _ (HidDevice, _ DeviceAttributes) Call DisplayResultOfAPICall("HidD_GetAttributes") If Result <> 0 Then lstResults.AddItem " HIDD_ATTRIBUTES structure filled without error." Else lstResults.AddItem " Error in filling HIDD_ATTRIBUTES structure." End If lstResults.AddItem " Structure size: " & DeviceAttributes.Size lstResults.AddItem " Vendor ID: " & Hex$(DeviceAttributes.VendorID) lstResults.AddItem " Product ID: " & Hex$(DeviceAttributes.ProductID)

Imports System.ComponentModel Imports System.Collections.Generic Imports System.IO Imports System.Runtime.InteropServices Imports System.Management Imports Microsoft.VisualBasic Imports System.D

概述：报告在这里意思是数据传输（data transfer），而报告描述符是对这些传输的数据作用途（usage）上的说明。 USB通讯协议的规范是以1ms产生一个USB帧（frame），USB设备可以每一个帧中发送和接收一个交换（transaction）。交换是由几个封包(packet)组成，而传输是由一个或几个交换来完成传送一口中有效的数据。在这里，传输和报告的意思相类似。

报告在这里意思是数据传输（data transfer），而报告描述符是对这些传输的数据作用途（usage）上的说明。USB通讯协议的规范是以1ms产生一个USB帧（frame），USB设备可以每一个帧中发送和接收一个交换（transaction）。交换是由几个封包(packet)组成，而传输是由一个或几个交换来完成传送一口中有效的数据。在这里，传输和报告的意思相类似。传输方式有四种，初始学一般只...

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