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AM3352: Technical consulting

sir GUO

Prodigy 30 points

Part Number: AM3352

Hello！

AM3352: How do I use Linux to control USB power (on/off)?

Referring to online information, control is invalid:

echo "0" > "/sys/bus/usb/devices/usb1/power/autosuspend_delay_ms"
echo "auto" > "/sys/bus/usb/devices/usb1/power/control"

The Linux kernel version is:: 4.19.59;

Processor SDK Linux-am335x-evm-06.01.00.08

over 3 years ago

0 Bin Liu over 3 years ago

TI__Guru**** 167971 points

Hi,

Is this the same question as in the following thread?

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1127301/am3352-how-to-turn-on-off-usb-power-in-linux

0 sir GUO over 3 years ago in reply to Bin Liu

Prodigy 30 points

Hello, I'm not sure. Do you have any suggestions?

0 Bin Liu over 3 years ago in reply to sir GUO

TI__Guru**** 167971 points

Hi,

The referred e2e thread has some update. Please let me know if that solves the issue for you.

0 sir GUO over 3 years ago in reply to Bin Liu

Prodigy 30 points

Hello, this problem has not been solved, please consult me.

0 Bin Liu over 3 years ago in reply to sir GUO

TI__Guru**** 167971 points

Have you tried the steps described in the following thread? If it doesn't solve the problem, please explain in details.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1127301/am3352-how-to-turn-on-off-usb-power-in-linux