Querying USB device's bInterfaceNumber

[Greg KH]

On Tue, Nov 03, 2009 at 10:23:55AM -0800, Ping wrote:
> Yes, you are right. I know that.  The question is how to get it inside the
> xorg driver.  Ajax's reply indicates that there is no existing way for me to
> get it inside xorg.  Then, where should I go to fetch the data if not
> directly from something that I am "in control", the kernel driver?
> 
> I need a suggestion/solution.  Thank you for your reply.

I understand the need, but think it should be done at the xorg level,
not at the driver level, as adding an ioctl to your driver to export
things that the kernel already exports will be rejected by the usb
subsystem maintainer :)

thanks,

greg k-h