linux-kernel - Re: [PATCH v2] USB: Serial: cypress_M8: Enable Simply Automated UPB PIM

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Message-ID: <20200623075535.GE3334@localhost>
Date:   Tue, 23 Jun 2020 09:55:35 +0200
From:   Johan Hovold <johan@...nel.org>
To:     James Hilliard <james.hilliard1@...il.com>
Cc:     Johan Hovold <johan@...nel.org>, linux-usb@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2] USB: Serial: cypress_M8: Enable Simply Automated UPB
 PIM

On Mon, Jun 22, 2020 at 11:09:51AM -0600, James Hilliard wrote:
> On Mon, Jun 22, 2020 at 2:53 AM Johan Hovold <johan@...nel.org> wrote:
> >
> > On Tue, Jun 16, 2020 at 04:04:03PM -0600, James Hilliard wrote:
> > > This is a UPB(Universal Powerline Bus) PIM(Powerline Interface Module)
> > > which allows for controlling multiple UPB compatible devices from
> > > Linux using the standard serial interface.
> > >
> > > Based on vendor application source code there are two different models
> > > of USB based PIM devices in addition to a number of RS232 based PIM's.
> > >
> > > The vendor UPB application source contains the following USB ID's:
> > > #define USB_PCS_VENDOR_ID 0x04b4
> > > #define USB_PCS_PIM_PRODUCT_ID 0x5500
> > >
> > > #define USB_SAI_VENDOR_ID 0x17dd
> > > #define USB_SAI_PIM_PRODUCT_ID 0x5500
> > >
> > > The first set of ID's correspond to the PIM variant sold by Powerline
> > > Control Systems while the second corresponds to the Simply Automated
> > > Incorporated PIM. As the product ID for both of these match the default
> > > cypress HID->COM RS232 product ID it assumed that they both use an
> > > internal variant of this HID->COM RS232 converter hardware. However
> > > as the vendor ID for the Simply Automated variant is different we need
> > > to also add it to the cypress_M8 driver so that it is properly
> > > detected.
> > >
> > > Signed-off-by: James Hilliard <james.hilliard1@...il.com>
> > > ---
> > > Changes v1 -> v2:
> > >   - Add more detailed commit message.
> >
> > Now applied, thanks.
>
> Oh, FYI I think part of the comment got dropped when you amended the
> patch
> I don't see the defines in the comment here:
> https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/commit/?h=usb-linus&id=7527d963dff544b0ddfba4319824c50f2a892aeb
> 
> I think I had to temporarily change my git config with this to make it not drop
> the defines:
> git config core.commentchar "*"

Thanks for catching that! I added a leading tab to prevent those lines
from being discarded.

Johan