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Can I act as a proxy for multiple devices at the same time? #21

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xucong1018 opened this issue Jan 22, 2024 · 1 comment
Open

Can I act as a proxy for multiple devices at the same time? #21

xucong1018 opened this issue Jan 22, 2024 · 1 comment

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@xucong1018
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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
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xairy commented Jan 22, 2024 •
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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.

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@xairy @xucong1018