WinCE 3G卡 USB驱动求救

youliam 2010-1-29 09:09 楼主

dear all:
小弟最近做一个HW的3G卡，WinCE下的USB虚拟串口驱动，在USB中，有8组接口，用了其它的一组有2个端点，8号端点OUT写数据，88号端点IN读取数据，为什么能写成功，IN不到数据呢，望大家指教，

代码如下：
dw = IssueBulkTransfer( pDrv->lpUsbFuncs,
g_pipeReadIn.hPipe,
DefaultTransferComplete, // Transfer completion routine.
g_pipeReadIn.hEvent,    // Single argument passed to the completion routine
(USB_IN_TRANSFER|USB_NO_WAIT|USB_SHORT_TRANSFER_OK),  // USB_XXX flags describing the transfer
g_pchRecvDataBuff+g_nRecvLen,          // Pointer to transfer buffer
0,       // Specifies the physical address, which may be NULL, of the data buffer
64,    // Length of transfer buffer in bytes
&dwBytes, // Returns number of bytes transferred by USB
INFINITE,       // Timeout in msec
&dwUsbErr          // Returns USB_ERROR or USB_TRANSFER
);

或者QQ：515555475

回复评论（5）

引用: 引用楼主 preboy 的回复:
dear all:
小弟最近做一个HW的3G卡，WinCE下的USB虚拟串口驱动，在USB中，有8组接口，用了其它的一组有2个端点，8号端点OUT写数据，88号端点IN读取数据，为什么能写成功，IN不到数据呢，望大家指教，

代码如下：
dw = IssueBulkTransfer( pDrv->lpUsbFuncs,
g_pipeReadIn.hPipe,
DefaultTransferComplete, // Transfer completion routine.
g_pipeReadIn.hEvent, ? // Single argument passed to the completion routine
(USB_IN_TRANSFER|USB_NO_WAIT|USB_SHORT_TRANSFER_OK),? // USB_XXX flags describing the transfer
g_pchRecvDataBuff+g_nRecvLen,? ? ? ? ?  // Pointer to transfer buffer
0,? ? ? ? ? // Specifies the physical address, which may be NULL, of the data buffer
64,? ? ? // Length of transfer buffer in bytes
&dwBytes, // Returns number of bytes transferred by USB
INFINITE,? ? ? ?  // Timeout in msec
&dwUsbErr? ? ? ? ? ?  // Returns USB_ERROR or USB_TRANSFER
?  );

或者QQ：515555475

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