On Mon, 14 Apr 2014, Pratyush Anand wrote: > Hi Alan, > > On Fri, Apr 11, 2014 at 06:56:37PM +0800, Pratyush ANAND wrote: > > Lecroy's USB Compliance suites provide option to test Link Layer Tests > > for Super Speed device as well as host. > > > > As of now there is no standard way to test embedded host for these > > tests. > > > > These patches modifies Linux USB host stack to carry out these tests for > > embedded hosts. Modifications are still not complete. Patch 2 will have > > few more sysfs nodes to support some failing tests. > > > > I am sending these as RFC for mainly to have your comment on framework > > modifications. Please let me know, if there could be any better way to > > do it. > > Do you see a better way of doing it than this implementation (which is > creating a platform device for each new connection request from Link > Layer Validation (LVS) device)? How about just creating a normal USB device instead of a platform device? I think all you have to do is make usb_new_device() avoid calling usb_enumerate_device() when the new flag is set. Also, instead of adding a new quirk flag to every single USB device, you probably should use something that is hcd-specific. Then xhci-hcd could register the new sysfs file, and it wouldn't be present for other controller types or non-root hubs. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
