linux-kernel - Re: [PATCH v2] usb: typec: Expose Product Type VDOs via sysfs

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Date:   Thu, 22 Oct 2020 00:25:07 -0700
From:   Prashant Malani <pmalani@...omium.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:USB NETWORKING DRIVERS" <linux-usb@...r.kernel.org>,
        Benson Leung <bleung@...omium.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: Re: [PATCH v2] usb: typec: Expose Product Type VDOs via sysfs

Hi Greg,

On Thu, Oct 22, 2020 at 12:17 AM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> > > > +What:                /sys/class/typec/<port>-partner/identity/product_type_vdo
> > > > +Date:                October 2020
> > > > +Contact:     Prashant Malani <pmalani@...omium.org>
> > > > +Description:
> > > > +             Product Type VDOs part of Discover Identity command result. 3 values
> > > > +             are displayed (for the 3 possible Product Type VDOs), one per line.
> > >
> > > sysfs is "one value per file", not "one value per line".  This is not
> > > ok.
> >
> > I see. Would listing these out as three separate vdos (i.e vdo0, vdo1,
> > vdo2) be better?
>
> Given that your current implementation is not acceptable, something has
> to change :)

Got it. I'd like to see if Heikki has any suggestions on naming these
entries better.

Thanks again and best regards,

-Prashant

>
> thanks,
>
> greg k-h