USB-PD protocol

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Hi,

Is there any way to capture the USB-PD protocol messages on the CC
pins of a usb connection?

I can use "modprobe usbmod" to capture the URB messages.
Is there any way to capture the CC pin messages using in negotiation
power USB-PD.
I guess is association with this, some way of also capturing the
Volts/Current on the Vconn and Vbus pins.

If it helps, my cpu is an AMD 7840, so it will be using whatever USB
hubs come with that.

Kind Regards

James




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