thanks Dane,
which patch do i need apply ?? below two related to Nano ??
[TX2]Not enough host controller resources for new device state xbox 360 controller through USB hub - broken in Jetpack 4.x, works in Jetpack 3.x (Not enough host c... - #2 by carolyuu
[Jetson Nano]Power control USB Power control - #7 by DaneLLL
[Jetson Nano]Do USB2 compliance test on USB hub Jetson Nano USB2.0 Tuning Guide ~ Bus error (core dumped) - #4 by DaneLLL