USB Port Power Control on IOTA or 3 Delta

David.Pearson · 2026-04-15T02:55:34+08:00

I need to disable power delivery to the USB ports on either the IOTA or 3 Delta (I don't have hardware yet), under software control. I plan on running Ubuntu Linux 22.04, and to use a utility such as <a target="_blank" rel="noopener noreferrer" href="https://github.com/mvp/uhubctl">uhubctl</a> to do the power control.I see the BIOS settings (as described in the <a target="_blank" rel="noopener noreferrer" href="https://docs.lattepanda.com/content/iota_edition/bios_usb_port_power_control/">BIOS Documentation</a>) will allow me to control what happens when the board is powered-off (Hibernate and Shutdown modes). But my need is for an application to turn the USB port power off (VBUS = 0V) while the system is in Running mode.Does anyone know if this is possible?

David.Pearson 2026-04-15 02:55:34 95 Views1 Replies
I need to disable power delivery to the USB ports on either the IOTA or 3 Delta (I don't have hardware yet), under software control. I plan on running Ubuntu Linux 22.04, and to use a utility such as uhubctl to do the power control.
I see the BIOS settings (as described in the BIOS Documentation) will allow me to control what happens when the board is powered-off (Hibernate and Shutdown modes). But my need is for an application to turn the USB port power off (VBUS = 0V) while the system is in Running mode.
Does anyone know if this is possible?