Part Number: TUSB4020BI-Q1
Hi,
I'd like to know why we can't see the USB 2.0 HUB in Linux using "lsusb" command.
we checked voltages:
1. VDD_1P1 (Equal to 1.16 on board)
2. VCC_3V3 (Equal to 3.34 on board)
Note: I understood the the EEPROM circuitry is optional so I left all the parts: U7, R50, R49, C7, R44, R39, R43, R41, R40, R42 not placed on PCB.
fc-pci_1_3_2.pdf
Please check our design and help us identify what could be causing the problem.
