We are developing a device with the TUSB8041 as an embedded hub. The design works with all other devices tested, except with this particular USB3.0 camera. The device will enumerate, but disconnect when trying to communicate with it. This only happens when the camera is plugged into a hot port. If the hub is brought up from reset with the camera connected, the errors go away. I suspected a signal integrity issue, but I get the same behavior when using the TUSB8041 development board. Swapping cameras does not fix the issue. Connecting the camera directly works fine. Connecting the camera to a random Amazon hub works fine. The following configurations also work:
1. PC-Amazon hub-TUSB8041 hub-camera
2. PC-TUSB8041 hub-Amazon hub-camera
I know this is a long shot, but is there something I might be able to do to diagnose the problem?
--Nick
