Re: [PATCH 00/25] thunderbolt: Add support for USB4

From: Mika Westerberg
Date: Wed Oct 23 2019 - 12:18:38 EST

On Wed, Oct 23, 2019 at 03:55:48PM +0000, Mario.Limonciello@xxxxxxxx wrote:
> > I did not yet add the hw_vendor_id and hw_product_id attributes because I
> > clocked that 'dd if=nvm_activeX/nvmem of=/dev/null bs=64 count=2' (that's
> > what fwupd does) takes typically less than 10 ms when the controller is powered
> > on. That should not slow down fwupd. We can add them later if it is really a
> > problem (I'm just trying to avoid adding too much attributes that we need to
> > maintain forever).
> Maybe the controller going into D3 is the key to why it measured slow for me when
> I checked.

Yeah, that's most likely the case.