求usb接口读写的资料

Xcoder 2004-12-17 10:47:05

文档、代码均可。各位大大给个连接就好。

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Mr-Chen 2004-12-31

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你可以看看cypress公司EZUSB芯片AN2131QC全部的文档，有一个叫做EzMr的主机程序，是一个VC++程序，上面有访问这个芯片的全部程序，你可以下载看看：

http://www.driverdevelop.com/forum/upload/sunkai/2002-05-03_EzMr&Hex2C.rar

Mr-Chen 2004-12-31

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ddk下有不少例子
思路大体如下：
<1>. 打开设备，获取设备句柄CreateFile("\\\\.\\ezusb-0",.......)；
<2>. 设置Interface；获取 PipesInfo；
<3>. 用 Bulk 或其它方式传输数据；
<4>. 关闭设备。

pepsi1980 2004-12-30

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去www.codeproject上看看。

roger_ding 2004-12-22

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98下要通过scsi command

LVOLCANO 2004-12-21

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mark

老夏Max 2004-12-21

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http://www.vckbase.com/document/finddoc.asp?keyword=USB

msm 2004-12-21

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我去找找资料

zhongyh 2004-12-19

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在98下不行,返回句柄失败,怎么办?

zhjie374 2004-12-19

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mark

bobob 2004-12-19

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mark

kingzai 2004-12-17

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http://search.csdn.net/Expert/topic/2427/2427105.xml?temp=.8320276

kingzai 2004-12-17

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HANDLE OpenDevice(LPGUID pGuid, char *outNameBuf)
{
HANDLE hOut = INVALID_HANDLE_VALUE;
HDEVINFO hardwareDeviceInfo;
SP_INTERFACE_DEVICE_DATA deviceInfoData;

hardwareDeviceInfo = SetupDiGetClassDevs (pGuid, NULL, NULL, (DIGCF_PRESENT | DIGCF_INTERFACEDEVICE));

deviceInfoData.cbSize = sizeof (SP_INTERFACE_DEVICE_DATA);

if (SetupDiEnumDeviceInterfaces (hardwareDeviceInfo, 0, pGuid, 0, &deviceInfoData))
{
hOut = OpenOneDevice (hardwareDeviceInfo, &deviceInfoData, outNameBuf);

if (hOut==INVALID_HANDLE_VALUE)
return INVALID_HANDLE_VALUE;
}

DWORD reErr = GetLastError( );

SetupDiDestroyDeviceInfoList (hardwareDeviceInfo);

return hOut;
}

HANDLE OpenOneDevice(HDEVINFO HardwareDeviceInfo, PSP_INTERFACE_DEVICE_DATA DeviceInfoData, char *devName)
{
PSP_INTERFACE_DEVICE_DETAIL_DATA functionClassDeviceData = NULL;
ULONG predictedLength = 0;
ULONG requiredLength = 0;
HANDLE hOut = INVALID_HANDLE_VALUE;

// allocate a function class device data structure to receive the goods about this particular device.
SetupDiGetInterfaceDeviceDetail (HardwareDeviceInfo, DeviceInfoData, NULL, 0, &requiredLength, NULL);

predictedLength = requiredLength;
// sizeof (SP_FNCLASS_DEVICE_DATA) + 512;

functionClassDeviceData = (PSP_INTERFACE_DEVICE_DETAIL_DATA)malloc (predictedLength);
functionClassDeviceData->cbSize = sizeof (SP_INTERFACE_DEVICE_DETAIL_DATA);

// Retrieve the information from Plug and Play.
if (!SetupDiGetInterfaceDeviceDetail(
HardwareDeviceInfo,
DeviceInfoData,
functionClassDeviceData,
predictedLength,
&requiredLength,
NULL))
{
free(functionClassDeviceData);
return INVALID_HANDLE_VALUE;
}

strcpy(devName,functionClassDeviceData->DevicePath);
printf("Attempting to open %s\n", devName);

hOut = CreateFile (functionClassDeviceData->DevicePath,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);

if (INVALID_HANDLE_VALUE == hOut)
printf("FAILED to open %s\n", devName);

free(functionClassDeviceData);

return hOut;
}

HANDLE hDEV = OpenDevice((LPGUID)&GUID_BUS_UMSS, completeDeviceName);
if (hDEV==INVALID_HANDLE_VALUE)
return;

DeviceIoControl (
hDEV,
IOCTL_Vender_VCMD_WRITE,
buf,
31, //CBW
buf,
13, // Data + CSW
(LPDWORD)&nBytes,
NULL
);