Serial Number For Composite Device

NTDEV
1

Dear Team,

I am having USB Composite device ( HID + Mass Storage). I am aware that if I implement the Serial Number in the device side, Windows will not prompt for new driver when the device is connected in the different USB port.

I verified the same with single interfaced device also.

But even after implementing Serial Number in the case of Composite Device, Windows is launching New Hardware Found pop up.

Do I need to modify any other field in case of Composite Device so that Windows recognizes the device in any USB port.

Regards.

2

Any suggestions regarding Serail Number implementation.

Regards.

On Oct 30, 2007 6:21 AM, wrote:
> Dear Team,
>
> I am having USB Composite device ( HID + Mass Storage). I am aware that if I implement the Serial Number in the device side, Windows will not prompt for new driver when the device is connected in the different USB port.
>
> I verified the same with single interfaced device also.
>
> But even after implementing Serial Number in the case of Composite Device, Windows is launching New Hardware Found pop up.
>
> Do I need to modify any other field in case of Composite Device so that Windows recognizes the device in any USB port.
>
> Regards.
>
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3

Uday Bhaskar wrote:

Any suggestions regarding Serail Number implementation.

There shouldn’t be any difference. Let’s see a dump of USBView on your device with both the single-interface device and composite device.

4

I just download the USBView to see the dump and will update the status as soon as I complete.

Regards.