linux-kernel - Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode

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Message-ID: <20180408190600.GA24342@amd>
Date:   Sun, 8 Apr 2018 21:06:00 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        Alan Cox <alan@...yncelyn.cymru>,
        Dan Williams <dcbw@...hat.com>,
        Jiri Prchal <jiri.prchal@...ignal.cz>,
        Jiri Slaby <jslaby@...e.cz>, Marcel Partap <mpartap@....net>,
        Merlijn Wajer <merlijn@...zup.org>,
        Michael Nazzareno Trimarchi <michael@...rulasolutions.com>,
        Michael Scott <michael.scott@...aro.org>,
        Peter Hurley <peter@...leysoftware.com>,
        Russ Gorby <russ.gorby@...el.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sebastian Reichel <sre@...nel.org>
Subject: Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame
 timeouts in ADM mode

Hi!

> > Do you have a tool to use and a script?
> 
> Yes I used the shell script I posted earlier, but forgot it also
> needs the ldattach done.
> 
> Anyways, last night and today I wrote a quick test utility called
> droid4-ngsm that initializes things and I can use to do some
> experiments to get the ts27010 channel proxying to W3GLTE also
> going:
> 
> http://github.com/tmlind/droid4-ngsm/

Ok, now i'm confused. It wants to bind to ttyS0, but modem is on
ttyUSB4 AFAICT? Or is the modem connected to serial port, too? (Do I
need to enable some more drivers for that?)

I do have ttyS0, but I don't think there's anything attached there. Or
is ttyS0 for the LTE modem?


> Sorry could not resist adding a test call feature too :)

:-)

> Hmm it might be best to add the ts27010 support and proxying
> eventually to ModemManager? I think ofono and others could still
> use the /dev/gsmtty* ports for the modem as needed too?

I'm not sure how the userland should be designed...

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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