Re: Enumerating USB Ports in a PC and recognizing the connected device

Hi ,

Env : Windows XP Pro / SP3
         Visual Studio 6.0

I am NOT using Windows DDK .

I need to do the following :
1) Enumerate USB ports
2) Find the freindly name of the device attached with it . For example if
I
have Nokia data cable connected in my USB port , the freindly name of the
data cable should be displayed ...

Please find my code below :-

GUID guid = GUID_DEVCLASS_USB ;

SP_DEVICE_INTERFACE_DATA interfaceData;
ZeroMemory(&interfaceData, sizeof(interfaceData));
interfaceData.cbSize = sizeof(interfaceData);

SP_DEVINFO_DATA devInfoData;
ZeroMemory(&devInfoData, sizeof(devInfoData));
devInfoData.cbSize = sizeof(devInfoData);

HDEVINFO devInfo;
devInfo = SetupDiGetClassDevs( &guid ,
NULL,
NULL,
DIGCF_PRESENT | DIGCF_DEVICEINTERFACE ) ;

TCHAR szBuf[100];

BOOL retval = false;
int nDevices = 0;

do {
memset(&devInfoData,0,sizeof(devInfoData));
devInfoData.cbSize = sizeof(devInfoData);

if ((retval=SetupDiEnumDeviceInfo(devInfo,nDevices,&devInfoData))!=FALSE)
{

if (SetupDiGetDeviceRegistryProperty(
devInfo,
&devInfoData,
SPDRP_FRIENDLYNAME,
NULL,
(PBYTE)szBuf,
sizeof(szBuf),
NULL))
m_PortName.AddString(szBuf);

nDevices++;
}
}
while (retval != FALSE);

Unfortunately the USB ports are not being displayed

Please help .

Thanks in advance .

Sujay

--
Sujay Ghosh
Bangalore, INDIA

--
Sujay Ghosh
Bangalore, INDIA