Can I act as a proxy for multiple devices at the same time?

[xucong1018]

Can I act as a proxy for multiple devices at the same time?
i get the error "ioctl(USB_RAW_IOCTL_RUN)" ，when I'm acting for the second device.
Thank you for the answer.

[xairy]

If you have two separate UDCs connected, then it should be possible.

If you have only one UDC, then it's not. Emulating a USB hub is impossible through the Gadget subsystem AFAIK. It might be possible to implement parallel proxying of some 1-configuration 1-interface devices by combing them into a single device with two interfaces, but this likely won't work for many practical use cases.