Re: USB Mass Storage

You need to change USB device class code.

"Sushma" <> wrote in message
news:07efc24b-5d2b-4c09-8b97-...
> Hi All,
>
> I'm developing a USB mass storage driver for new USB device which
> implements UAS (USB Attached SCSI) protocol. The device is also BOT
> compatible.
>
> I have two questions.
>
> 1) When i plug the device to PC, the default mass storage driver is
> loaded. How can i replace the default inbox driver, so that PnP
> manager prompts for "New hardware Wizard" for my device.
> 2) I need to use USB + SCSI driver for the device. I took osrusbfx2
> KMDF sample for USB interface. I would like to know which sample in
> storage implements handling of SCSI commands which is more of like
> mass storage device.
>
> Any help is much appreciated.
>
> Thanks and Regards,
> Sushma

Why would you want to see the "New hardware wizard"? Wouldn't you just want
to provide a better (ranked) driver than the Inbox one so that it is
selected and installed automatically?

-Mike

"Sushma" <> wrote in message
news:f2e4126a-61c4-452e-b7bb-...
>
>> You need to change USB device class code.
>>
>
> Thanks for the reply. My device has the device class code same as mass
> storage device so that it can be backward compatible. So, I cannot
> change it. Any how I found the answer myself. The interfaceclass or
> interfacesubclass or interfaceprotocol present in interface descriptor
> need to be different so that the default mass storage driver can be
> overridden. I was planning for a different interface protocol.
>
> I still do not have any answer for the second question. Can someone
> help me in this regard.
>
> 2) I need to use USB + SCSI driver for the device. I took osrusbfx2
> KMDF sample for USB interface. I would like to know which sample in
> storage implements handling of SCSI commands which is more of like
> mass storage device.
>
> Thank You.
>
> Regards,
> Sushma