b2db39cefe
https://www.usb.org/sites/default/files/hid1_11.pdf Appendix B, B.2 Protocol 2 (Mouse) details the information returned by a usb mouse HID. bytes 3..n are specific to the device, but are used by absolute pointer devices to return a z axis. Prior to this change, the existing code was reusing the X value for the Z axis, which was incorrect. For usb devices which do not return enough data for a z axis, this change will be a no-op. Signed-off-by: Aaron Pop <aaronpop@microsoft.com>