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From: shiva on 13 Dec 2006 07:16
How can i read the device details of an USB device using SDK.
i got the handle to device using "CreateFile" function.
But i am not getting the proper "dwIoControlCode" value to use with
"DeviceIoCtl" function.
Can any one tell me pls..?
I not have installed DDK in my system.

Thanks in advance

Shiva

From: Uwe Sieber on 13 Dec 2006 12:42

On arrival of the device you get DBT_DEVICEARRIVAL with
GUID_DEVINTERFACE_USB_DEVICE in dbi->dbcc_classguid. In
dbi->dbcc_name you find the device path of the USB device
like this:
\\?\USB#Vid_067b&Pid_2517#6&12115ad4&2&1#{GUID}
As you can see it includes VID and PID.


Uwe




shiva wrote:
> How can i read the device details of an USB device using SDK.
> i got the handle to device using "CreateFile" function.
> But i am not getting the proper "dwIoControlCode" value to use with
> "DeviceIoCtl" function.
> Can any one tell me pls..?
> I not have installed DDK in my system.
>
> Thanks in advance
>
> Shiva
>
From: shiva on 14 Dec 2006 04:42
Yaa.. hats correct.
in my project i need to read whole device descriptor of USB device
along with pid, vid.
Is it possible to read using only SDK.

Pls lemme know



Uwe Sieber wrote:
> On arrival of the device you get DBT_DEVICEARRIVAL with
> GUID_DEVINTERFACE_USB_DEVICE in dbi->dbcc_classguid. In
> dbi->dbcc_name you find the device path of the USB device
> like this:
> \\?\USB#Vid_067b&Pid_2517#6&12115ad4&2&1#{GUID}
> As you can see it includes VID and PID.
>
>
> Uwe
>
>
>
>
> shiva wrote:
> > How can i read the device details of an USB device using SDK.
> > i got the handle to device using "CreateFile" function.
> > But i am not getting the proper "dwIoControlCode" value to use with
> > "DeviceIoCtl" function.
> > Can any one tell me pls..?
> > I not have installed DDK in my system.
> >
> > Thanks in advance
> >
> > Shiva
> >

From: Uwe Sieber on 14 Dec 2006 06:04


Have a look at the UsbView sample that comes with
the Windows DDK and the DisplayUSB sample from Intel:
http://www.intel.com/intelpress/usb/examples/DUSBVC.PDF


Uwe





shiva wrote:
> Yaa.. hats correct.
> in my project i need to read whole device descriptor of USB device
> along with pid, vid.
> Is it possible to read using only SDK.
>
> Pls lemme know
>
>
>
> Uwe Sieber wrote:
>> On arrival of the device you get DBT_DEVICEARRIVAL with
>> GUID_DEVINTERFACE_USB_DEVICE in dbi->dbcc_classguid. In
>> dbi->dbcc_name you find the device path of the USB device
>> like this:
>> \\?\USB#Vid_067b&Pid_2517#6&12115ad4&2&1#{GUID}
>> As you can see it includes VID and PID.
>>
>>
>> Uwe
>>
>>
>>
>>
>> shiva wrote:
>>> How can i read the device details of an USB device using SDK.
>>> i got the handle to device using "CreateFile" function.
>>> But i am not getting the proper "dwIoControlCode" value to use with
>>> "DeviceIoCtl" function.
>>> Can any one tell me pls..?
>>> I not have installed DDK in my system.
>>>
>>> Thanks in advance
>>>
>>> Shiva
>>>
>
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