偵測USB裝置插入哪一個USB Port插槽 |
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blk5743
高階會員   發表：34 回覆：371 積分：236 註冊：2003-11-17 發送簡訊給我 |
這個程式已經得到作者的允許，如果要在轉載至其他網站，請先經過作者同意
此程式是用VC寫的，不過稍加修改一下就可以在BCB執行 作者說會有The USBView.exe sample program does not enumerate devices on pre-Windows XP SP1-based computers的問題
http://support.microsoft.com/default.aspx?scid=kb;en-us;838100
但是我在XP SP1,SP2都沒發現有什麼大問題 但是程式碼中的sizeof(NodeInformation)的長度會算錯
(正確為76，但是我的兩台電腦均為73)
同時在NodeInformation.HubDescriptor會塞進三個Byte "0",因此所有結構的內容都會Offset 3 bytes.因此會得到錯誤的bNumberOfPorts
以上錯誤不知為何會出現，不過用小技巧避開後即可正常執行，也希望能有高手可以解答我這個問題
// This version of DisplayUSB.cpp was derived from an example program first
// published by John Hyde in his book
// USB Design by Example, 2nd Edition
// A Practical Guide to Building I/O Devices
//
// It is Copyright (C) 2004, John Hyde and published with his permission
//
// Permission is hereby granted to merge this program code with other program
// material to create a derivative work. This derivative work may be distributed
// in compiled object form only. Any other publication of this program, in any form,
// without the explicit permission of the copyright holder is prohibited.
//
// Send questions and comments to John@USB-By-Example.com #include "stdafx.h"
#include "objbase.h"
#include "winioctl.h"
#include "usbioctl.h"
#include "stdio.h"
#include "stdlib.h" bool DEBUG; // Set to true to enable DEBUG messages
SECURITY_ATTRIBUTES SA; // Needed for Win2000 const char ClassName[] [20] = {
"Reserved", "Audio", "Communications", "Human Interface",
"Monitor", "Physical Interface", "Power", "Printer",
"Storage", "Hub", "Vendor Specific", "*ILLEGAL VALUE*"
}; const char ConnectionStatus[] [30] = {
"No device connected", "Device connected", "Device FAILED enumeration",
"Device general FAILURE", "Device caused overcurrent", "Not enough power for device"
}; // Define all stuctures using UCHAR or BOOLEAN so that the variables are not 'aligned' by the compiler
typedef struct DESCRIPTOR_REQUEST {
ULONG ConnectionIndex;
struct {UCHAR bmRequest; UCHAR bRequest; UCHAR wValue[2]; UCHAR wIndex[2]; UCHAR wLength[2];} SetupPacket;
UCHAR Data[2048];
}; typedef struct DEVICE_DESCRIPTOR {
UCHAR bLength; UCHAR bDescriptorType; UCHAR bcdUSB[2];
UCHAR bDeviceClass; UCHAR bDeviceSubClass; UCHAR bDeviceProtocol;
UCHAR bMaxPacketSize0; UCHAR idVendor[2]; UCHAR idProduct[2];
UCHAR bcdDevice[2]; UCHAR iManufacturer; UCHAR iProduct;
UCHAR iSerialNumber; UCHAR bNumConfigurations;
}; typedef struct HUB_DESCRIPTOR {
UCHAR bDescriptorLength; UCHAR bDescriptorType; UCHAR bNumberOfPorts;
UCHAR wHubCharacteristics[2]; UCHAR bPowerOnToPowerGood; UCHAR bHubControlCurrent;
UCHAR bRemoveAndPowerMask[64];
}; typedef struct NODE_INFORMATION {
USB_HUB_NODE NodeType; HUB_DESCRIPTOR HubDescriptor; BOOLEAN HubIsBusPowered;
}; typedef struct NODE_CONNECTION_INFORMATION {
ULONG ConnectionIndex; DEVICE_DESCRIPTOR DeviceDescriptor; UCHAR CurrentConfigurationValue;
BOOLEAN LowSpeed; BOOLEAN DeviceIsHub; UCHAR DeviceAddress[2];
UCHAR NumberOfOpenPipes[4]; UCHAR ConnectionStatus[4]; USB_PIPE_INFO PipeList[32];
}; USHORT DisplayStringDescriptor (HANDLE HubHandle, ULONG PortIndex, USHORT LanguageID, UCHAR Index) {
if (DEBUG) printf("\nIn DisplayStringDescriptor with HubHandle = %x, PortIndex = %x, LanguageID = %x, Index = %x\n",
HubHandle, PortIndex, LanguageID, Index);
DESCRIPTOR_REQUEST Packet;
DWORD BytesReturned;
bool Success;
if (LanguageID == 0) { // Get the language ID
memset(&Packet, 0, sizeof(Packet));
Packet.ConnectionIndex = PortIndex;
Packet.SetupPacket.bmRequest = 0x80;
Packet.SetupPacket.bRequest = USB_REQUEST_GET_DESCRIPTOR;
Packet.SetupPacket.wValue[1] = USB_STRING_DESCRIPTOR_TYPE;
Packet.SetupPacket.wLength[0] = 4;
Success = DeviceIoControl(HubHandle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, &Packet,
sizeof(Packet), &Packet, sizeof(Packet), &BytesReturned, NULL);
if (!Success) printf(" *** ERROR *** String Descriptor 0 not returned, ErrorCode = %d\n", GetLastError());
LanguageID = Packet.Data[2] (Packet.Data[3] << 8);
}
memset(&Packet, 0, sizeof(Packet));
Packet.ConnectionIndex = PortIndex;
Packet.SetupPacket.bmRequest = 0x80;
Packet.SetupPacket.bRequest = USB_REQUEST_GET_DESCRIPTOR;
Packet.SetupPacket.wValue[1] = USB_STRING_DESCRIPTOR_TYPE;
Packet.SetupPacket.wValue[0] = Index;
Packet.SetupPacket.wIndex[0] = LanguageID & 0xFF;
Packet.SetupPacket.wIndex[1] = (LanguageID >> 8) & 0xFF;
Packet.SetupPacket.wLength[0] = 255;
Success = DeviceIoControl(HubHandle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, &Packet,
sizeof(Packet), &Packet, sizeof(Packet), &BytesReturned, NULL);
if (!Success) printf(" *** ERROR *** String Descriptor %d not returned. ErrorCode = %d\n", Index, GetLastError());
printf(" = %ws", &Packet.Data[2]);
return LanguageID;
} USHORT DisplayDeviceDescriptor (HANDLE HubHandle, ULONG PortIndex, USHORT LanguageID, PUCHAR BufferPtr) {
if (DEBUG) printf("In DisplayDeviceDescriptor with HubHandle = %x, PortIndex = %x, LanguageID = %x\n", HubHandle, PortIndex, LanguageID);
UCHAR LowByte;
printf("Device Descriptor");
BufferPtr--; // Backup pointer to prepare for pre-increment
printf("\n bLength %2.2x", * BufferPtr);
printf("\n bDescriptorType %2.2x", * BufferPtr);
LowByte = * BufferPtr;
printf("\n bcdUSB %4.4x", LowByte (* BufferPtr << 8));
printf("\n bDeviceClass %2.2x", * BufferPtr);
printf("\n bDeviceSubClass %2.2x", * BufferPtr);
printf("\n bDeviceProtocol %2.2x", * BufferPtr);
printf("\n bMaxEP0Size %2.2x", * BufferPtr);
LowByte = * BufferPtr;
printf("\n wVendorID %4.4x", LowByte (* BufferPtr << 8));
LowByte = * BufferPtr;
printf("\n wProductID %4.4x", LowByte (* BufferPtr << 8));
LowByte = * BufferPtr;
printf("\n wDeviceID %4.4x", LowByte (* BufferPtr << 8));
printf("\n iManufacturer %2.2x", * BufferPtr);
if (*BufferPtr != 0) LanguageID = DisplayStringDescriptor(HubHandle, PortIndex, LanguageID, *BufferPtr);
printf("\n iProduct %2.2x", * BufferPtr);
if (*BufferPtr != 0) LanguageID = DisplayStringDescriptor(HubHandle, PortIndex, LanguageID, *BufferPtr);
printf("\n iSerialNumber %2.2x", * BufferPtr);
if (*BufferPtr != 0) LanguageID = DisplayStringDescriptor(HubHandle, PortIndex, LanguageID, *BufferPtr);
printf("\n bNumConfigurations %2.2x\n", * BufferPtr);
return LanguageID;
} USHORT DisplayConfigurationDescriptor(HANDLE HubHandle, ULONG PortIndex, USHORT LanguageID) {
if (DEBUG) printf("In DisplayConfigurationDescriptor with HubHandle = %x, PortIndex = %x, LanguageID = %x\n", HubHandle, PortIndex, LanguageID);
DWORD BytesReturned;
bool Success;
UCHAR LowByte;
DESCRIPTOR_REQUEST Packet;
int i;
printf("\nConfiguration Descriptor");
// First need to get the configuration descriptor
memset(&Packet, 0, sizeof(Packet));
Packet.ConnectionIndex = PortIndex;
Packet.SetupPacket.bmRequest = 0x80;
Packet.SetupPacket.bRequest = USB_REQUEST_GET_DESCRIPTOR;
Packet.SetupPacket.wValue[1] = USB_CONFIGURATION_DESCRIPTOR_TYPE;
Packet.SetupPacket.wLength[1] = 1; // Using a 2K buffer
Success = DeviceIoControl(HubHandle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, &Packet,
sizeof(Packet), &Packet, sizeof(Packet), &BytesReturned, NULL);
if (!Success) printf(" *** ERROR *** Configuration Descriptor not returned. ErrorCode = %d\n", GetLastError());
PUCHAR BufferPtr = &Packet.Data[0];
UCHAR Length = *BufferPtr;
while (Length != 0) {
UCHAR Type = * BufferPtr;
switch (Type) {
case 2:
printf("\n bLength %2.2x", Length);
printf("\n bDescriptorType %2.2x = Configuration Header", Type);
LowByte = * BufferPtr;
printf("\n wTotalLength %4.4x", LowByte (* BufferPtr << 8));
printf("\n bNumInterfaces %2.2x", * BufferPtr);
printf("\n bConfigValue %2.2x", * BufferPtr);
printf("\n iConfiguration %2.2x", * BufferPtr);
if (*BufferPtr != 0) LanguageID = DisplayStringDescriptor(HubHandle, PortIndex, LanguageID, *BufferPtr);
printf("\n bmAttributes %2.2x", * BufferPtr);
LowByte = * BufferPtr;
printf("\n bMaxPower %2.2x = %d mA", LowByte, (LowByte << 1));
break;
case 4:
printf("\n bLength %2.2x", Length);
printf("\n bDescriptorType %2.2x = Interface Descriptor", Type);
printf("\n bInterfaceNum %2.2x", * BufferPtr);
printf("\n bAlternateSetting %2.2x", * BufferPtr);
printf("\n bNumEndpoints %2.2x", * BufferPtr);
LowByte = * BufferPtr;
if ((LowByte > 9) & (LowByte < 255)) LowByte = 11;
if (LowByte == 255) LowByte = 10;
printf("\n bInterfaceClass %2.2x = %s", *BufferPtr, ClassName[LowByte]);
printf("\n bSubClass %2.2x", * BufferPtr);
printf("\n bProtocol %2.2x", * BufferPtr);
printf("\n iInterface %2.2x", * BufferPtr);
if (*BufferPtr != 0) LanguageID = DisplayStringDescriptor(HubHandle, PortIndex, LanguageID, *BufferPtr);
break;
case 5:
printf("\n bLength %2.2x", Length);
printf("\n bDescriptorType %2.2x = Endpoint Descriptor", Type);
printf("\n bEndpointAddress %2.2x", * BufferPtr);
printf("\n bmAttributes %2.2x", * BufferPtr);
LowByte = * BufferPtr;
printf("\n wMaxPacketSize %4.4x", LowByte (* BufferPtr << 8));
printf("\n bInterval %2.2x", * BufferPtr);
break;
case 0x21:
printf("\n bLength %2.2x", Length);
printf("\n bDescriptorType %2.2x = HID Descriptor", Type);
LowByte = * BufferPtr;
printf("\n wHIDversion %4.4x", LowByte (* BufferPtr << 8));
printf("\n bCountryCode %2.2x", * BufferPtr);
printf("\n bHIDDescriptorCount %2.2x", * BufferPtr);
printf("\n bHIDReportType %2.2x", * BufferPtr);
LowByte = * BufferPtr;
printf("\n wHIDReportLength %4.4x", LowByte (* BufferPtr << 8));
break;
default:
printf("\nUnknown descriptor with Length = %2.2xH and Type = %2.2xH", Length, Type);
BufferPtr-=2; // Back up to start of descriptor
for (i = 0; i < Length; i ) {
if ((i % 16) == 0) printf("\n");
printf("%2.2x ", * BufferPtr);
}
break;
}
Length = * BufferPtr;
printf("\n");
}
return LanguageID;
} void GetPortData(HANDLE HubHandle, UCHAR PortCount, int HubDepth) {
if (DEBUG) printf("In GetPortData with HubHandle = %x, PortCount = %x, HubDepth = %x\n", HubHandle, PortCount, HubDepth);
DWORD BytesReturned;
bool Success;
int i;
ULONG PortIndex;
USHORT LanguageID;
UCHAR ThisDevice, PortStatus;
char ConnectedHubName[256] = "\\\\.\\";
HANDLE ConnectedHubHandle;
NODE_INFORMATION NodeInformation;
NODE_CONNECTION_INFORMATION ConnectionInformation;
struct {ULONG ConnectionIndex; ULONG ActualLength; WCHAR Name[256];} ConnectedHub; // Iterate over the ports to discover what is connected to each one
for (PortIndex = 1; PortIndex < (ULONG)PortCount 1; PortIndex ) {
LanguageID = 0; // Reset for each port
ConnectionInformation.ConnectionIndex = PortIndex;
Success = DeviceIoControl(HubHandle, IOCTL_USB_GET_NODE_CONNECTION_INFORMATION, &ConnectionInformation,
sizeof(ConnectionInformation), &ConnectionInformation, sizeof(ConnectionInformation), &BytesReturned, NULL);
if (!Success) printf(" *** ERROR *** Node connection information not returned\n");
PortStatus = ConnectionInformation.ConnectionStatus[0]; // Save some typing!
ThisDevice = (PortStatus == DeviceConnected) ? ConnectionInformation.DeviceAddress[0] : 0; // Create an indented display so that hubs and their connections are more easily seen
// First the common header
// printf("%2.2x", ThisDevice);
for (i=0; i 附加檔案：59211_DUSBVC.zip
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ctx62
一般會員  發表：4 回覆：28 積分：6 註冊：2002-12-12 發送簡訊給我 |
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st
一般會員 發表：11 回覆：21 積分：11 註冊：2004-07-02 發送簡訊給我 |
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jemin121
一般會員 發表：2 回覆：4 積分：1 註冊：2005-01-19 發送簡訊給我 |
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tccman
一般會員 發表：0 回覆：11 積分：2 註冊：2005-02-17 發送簡訊給我 |
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blk5743
高階會員 發表：34 回覆：371 積分：236 註冊：2003-11-17 發送簡訊給我 |
有人寫信問我在哪找到這CODE
請參考 http://www.intel.com/intelpress/usb/examples/download.htm
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blk5743
高階會員 發表：34 回覆：371 積分：236 註冊：2003-11-17 發送簡訊給我 |
引言: 但是程式碼中的sizeof(NodeInformation)的長度會算錯 (正確為76，但是我的兩台電腦均為73) 同時在NodeInformation.HubDescriptor會塞進三個Byte "0",因此所有結構的內容都會Offset 3 bytes.因此會得到錯誤的bNumberOfPorts 以上錯誤不知為何會出現，不過用小技巧避開後即可正常執行，也希望能有高手可以解答我這個問題到Project->Option->Advanced Compiler->Data Alignment 選擇Byte 這是因為Compiler最佳化的緣故 因為我們的OS大部份都是32位元的 所以他會用四個Bytes(32bits)為一個單位 如果是一個Byte，為了快數存取，也會當作4Bytes 所以用sizeof時會算錯 |
發表時間：2004-11-05 15:40:00
IP:61.66.xxx.xxx 未訂閱
系統時間：2024-05-04 9:20:49
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