Re: [PATCH v2 1/2] net: usb: cdc_ether: add NCSI passthrough support

From: Andrew Lunn

Date: Wed Sep 09 2026 - 15:34:08 EST


On Tue, Sep 08, 2026 at 09:01:31PM +0800, Potin Lai wrote:
> From: Adrian Ambrozewicz <aambrozewicz@xxxxxxxxxx>
>

You posted while there was still ongoing discussion.

> - Keep carrier always on while interface is up, as NCSI control traffic
> shares the USB data path (unlike PHY-based drivers)
> - Ignore CDC status notifications since NCSI manages link state

Why is the emulator send such notifications?

Andrew

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