Hi all,
On my VIM 3:
- I plug a USB VGA camera on 4 pins (2 - 5 on 40-pin header so it uses HUB_DM4 and HUB_DP4).
- I also have a modem plugged in M2 socket (so it uses HUB_DM3 and HUB_DP3)
While camera is streaming and the modem transfers the data on the data lines, sometimes (10% of the time) I get problem of losing usb camera on the system (When I do lsusb
it’s no longer there although it is still connected) and a moment later (~10s) it gets back and works like normal.
Is there any way that I can debug usb hub to detect any power consumption problem or conflict between data lines on the hub ?
Thank you very much