[PATCH 1/1] usb: gadget: ether: Disable USB pullup in eth probe

Zixun LI admin at hifiphile.com
Fri Aug 23 11:22:59 CEST 2024


On Fri, Aug 23, 2024 at 4:54 AM Marek Vasut <marex at denx.de> wrote:
>
> I think udc_bind_to_driver() should not call usb_gadget_connect() , that
> connect should likely be called by at some later point.

Yes it's more logical, to keep it in disconnected state you prefer modify
controllers drivers init (I can do usba_udc and dwc2) or add a disconnect()
call ?

> I also think
> that drivers/usb/gadget/udc/udc-core.c might have to be extended to
> provide some way to convert controller struct udevice to struct
> usb_gadget , so when e.g. run_usb_dnl_gadget() calls
> udc_device_get_by_index() and obtains struct udevice * , it can also get
> matching struct usb_gadget * , and call the usb_gadget_connect().
>
> What do you think ?

I think it's a good idea.

If there are multiple gadget controllers (very rare), since
usb_gadget_probe_driver() simply takes the first one from udc list,
is there a chance that the one to be started is different from the one
used by udc_device_get_by_index() ?


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