Linux/AM5728: USB hub connected with USB3.0 interface is not detected

Gaurav Arya

Part Number: AM5728
Other Parts Discussed in Thread: TUSB8041

Tool/software: Linux

In our custom board both USB interface (USB3.0 and USB2.0)is detecting correctly(checked by command lsusb)

root@am57xx-evm:/# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

But hub(TUSB8041) connected with USB3.0 is getting detected.

Regards

Gaurav

over 6 years ago

0 Gaurav Arya over 6 years ago

Prodigy 60 points

Hi
Corrected typo error
But hub(TUSB8041) connected with USB3.0 is *not getting detected.

0 Biser Gatchev-XID over 6 years ago in reply to Gaurav Arya

TI__Guru**** 393215 points

Please post the USB portion of the schematic. Also post which Linux version you are using.

0 Gaurav Arya over 6 years ago in reply to Biser Gatchev-XID

Prodigy 60 points

Linux version:-4.14.79-gbde58ab01e

Schematic:-

0 -DK- over 6 years ago in reply to Gaurav Arya

TI__Mastermind 27890 points

Hello Guarav,
DRVVBUS should only be used to enable a VBUS power switch. It shouldn't be used directly as a VBUS sense for downstream devices.
How are you handling USB1_ID? Your schematic shows options for both PU and PD, but I can't tell which is populated in your final design.

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Linux/AM5728: USB hub connected with USB3.0 interface is not detected