如何编写Windows CE.net的usb驱动程序(2)

Mouse=(CMouse*)lpvNotifyParameter;

return(pMouse->MouseTransferComplete());

}

//数据传输完毕回调函数

DWORDCMouse::MouseTransferComplete()

{

if(m_hEvent)

SetEvent(m_hEvent);

return0;

}

ULONGCALLBACKCMouse::MouseThreadStub(PVOIDcontext)

{

CMouse*pMouse=(CMouse*)context;

return(pMouse->MouseThread());

}

//USB鼠标线程

DWORDCMouse::MouseThread()

{

DEBUGMSG(ZONE_INIT,(TEXT(USBMouse:Workerthreadstartedrn)));

SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_HIGHEST);

if(SubmitInterrupt())

{

while(!m_fClosing)

{

WaitForSingleObject(m_hEvent,INFINITE);

if(m_fClosing)

break;

if((*m_lpUsbFuncs->lpIsTransferComplete)(m_hInterruptTransfer))

{

if(!HandleInterrupt())

break;

}

else

{

RETAILMSG(1,(TEXT(!USBMouse:Eventsignalled,buttransfernotcompletern)));

//Theonlytimethisshouldhappenisifwegetanerroronthetransfer

ASSERT(m_fClosing||(m_hInterruptTransfer==NULL));

break;

}

}

}

RETAILMSG(1,(TEXT(USBMouse:Workerthreadexitingrn)));

return(0);

}

看到了没有，其实USB的驱动程序编写就这么简单，类似的其他设备，例如打印机设备，就有BulkOUTPIPE，需要Bulk传输，那就需要了解一下IssueBulkTransfer（）的应用。当然如果是开发USBMassStorageDisk的驱动，那就需要了解更多的协议，例如Bulk-OnlyTransport协议等。

微软的WindowsCE.NET的PlatformBuild中已经带有USBPrinter和USBMassStorageDisk的驱动的源代码了，好好研究一下，你一定回受益非浅的。