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From
SubjectRE: [PATCH] r8152: Add MAC passthrough support to new device
Date
Kai Heng Feng [mailto:kai.heng.feng@canonical.com]
> Sent: Wednesday, January 15, 2020 2:40 PM
[...]
> >> Device 0xa387 also supports MAC passthrough, therefore add it to the
> >> whitelst.
> >
> > Have you confirmed whether this product ID is unique to the products that
> > support this feature or if it's also re-used in other products?
>
> This is unique for Lenovo product.
>
> >
> > For Dell's devices there are very specific tests that make sure that this
> > feature only applies on the products it is supposed to and nothing else
> > (For example RTL8153-AD checks variant as well as effuse value)
> > (Example two: RTL8153-BND is a Dell only part).
>
> Hayes, do you know how macpassthru on Lenovo dock works?

I don't sure about it.

The Dell's devices use the VID/PID of Realtek, so they have another way
to check which devices support macpassthru.

The Lenovo use their VID/PID, so I guess they only check VID/PID.

Best Regards,
Hayes



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