On Thu, Mar 21, 2019 at 11:50:04AM +0200, Felipe Balbi wrote:
> > +static struct usb_interface_descriptor ftrace_intf_desc = {
> > + .bLength = USB_DT_INTERFACE_SIZE,
> > + .bDescriptorType = USB_DT_INTERFACE,
> > +
> > + .bAlternateSetting = 0,
> > + .bNumEndpoints = 1,
> > + .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
> > + .bInterfaceSubClass = USB_SUBCLASS_VENDOR_SPEC,
>
> We *may* be able to use the USB_DEBUG_CLASS here with a vendor protocol
> which we define to be Linux Ftrace. If folks think it would be best,
> then I can go look at the debug class and check whether it would be
> feasible.
I didn't think that that class allowed vendor protocols, but if it does,
sure, that would be nice.
I don't have access to usb-if specs since they kicked Linux out of the
organization, and because of that, I really don't care about their specs
anymore :)
thanks,
greg k-h
