LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Johan Hovold <johan@kernel.org>
To: Lars Melin <larsm17@gmail.com>
Cc: "Bjørn Mork" <bjorn@mork.no>, "Johan Hovold" <johan@kernel.org>,
	"SZ Lin (林上智)" <sz.lin@moxa.com>, stable <stable@vger.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Dan Williams" <dcbw@redhat.com>
Subject: Re: [PATCH] USB: serial: option: adding support for ublox R410M
Date: Thu, 26 Apr 2018 18:12:28 +0200	[thread overview]
Message-ID: <20180426161228.GW4615@localhost> (raw)
In-Reply-To: <98b50ae7-b889-6811-476e-9cdc8a62a484@gmail.com>

On Thu, Apr 26, 2018 at 06:40:46PM +0700, Lars Melin wrote:
> On 4/26/2018 18:39, Lars Melin wrote:
> > On 4/26/2018 18:19, Bjørn Mork wrote:
> >> Anyway, Qualcomm based designs are definitely handled by both drivers.
> >> Using qcserial only makes sense if the interface layout matches one of
> >> the defined shared schemes, which currently are:
> >>
> >>     QCSERIAL_G2K = 0,    /* Gobi 2000 */
> >>     QCSERIAL_G1K = 1,    /* Gobi 1000 */
> >>     QCSERIAL_SWI = 2,    /* Sierra Wireless */
> >>     QCSERIAL_HWI = 3,    /* Huawei */
> > 
> > It seems to me that this Quectel device matches the interface layout for 
> > Gobi1K:
> > 
> >           * Gobi 1K USB layout:
> >           * 0: DM/DIAG (use libqcdm from ModemManager for communication)
> >           * 1: serial port (doesn't respond)
> >           * 2: AT-capable modem port
> >           * 3: QMI/net
> >           */

> Ublox, not Quectel..

Yeah, but qcserial appears to select a different altsetting for the DM
port for Gobi 1000, an altsetting which this particular device does not
have.

I didn't re-read the full thread I referred to earlier, but I think in
it, Dan mentioned Gobi 1000 device requiring firmware to be loaded too. 

So if it's not a G1K device, we probably shouldn't be using qcserial
even if the interface layout happens to match.

Thanks,
Johan

  reply	other threads:[~2018-04-26 16:12 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-26  6:28 SZ Lin (林上智)
2018-04-26  7:09 ` Johan Hovold
2018-04-26  7:48   ` Lars Melin
2018-04-26  8:14     ` Johan Hovold
2018-04-26 11:19       ` Bjørn Mork
2018-04-26 11:39         ` Lars Melin
2018-04-26 11:40           ` Lars Melin
2018-04-26 16:12             ` Johan Hovold [this message]
2018-04-26 16:22               ` Lars Melin
2018-04-26 16:29                 ` Johan Hovold
2018-04-26 19:12                   ` Dan Williams
2018-04-27  2:14                     ` SZ Lin (林上智)
2018-05-02  7:22                     ` Johan Hovold

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180426161228.GW4615@localhost \
    --to=johan@kernel.org \
    --cc=bjorn@mork.no \
    --cc=dcbw@redhat.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=larsm17@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=sz.lin@moxa.com \
    --subject='Re: [PATCH] USB: serial: option: adding support for ublox R410M' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).