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From: Alan Cox <alan@linux.intel.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Lars Poeschel <poeschel@lemonage.de>,
	jslaby@suse.cz, linux-kernel@vger.kernel.org,
	xiaojin <jin.xiao@intel.com>, Ken Mills <ken.k.mills@intel.com>,
	Dirkjan Bussink <d.bussink@gmail.com>
Subject: Re: [RFC DO NOT MERGE] tty: n_gsm: support buggy modem
Date: Tue, 07 Jan 2014 16:51:37 +0000	[thread overview]
Message-ID: <1389113497.2735.142.camel@acox1-desk.ger.corp.intel.com> (raw)
In-Reply-To: <20140107142050.GB32491@kroah.com>

> > modem status command, but this DV bit is not set. With this patch the modem
> > and the whole mux is working fine. Another way makeing all this work is
> > setting the carrier_raised function to NULL. The tty code assumes that
> > everything is alright then.

Which means your modem has decided it doesn't yet have a carrier. Do you
get a carrier after ATD completes with a CONNECTED message ?

(you can open with O_NDELAY to avoid blocking on the open)

Alan



  reply	other threads:[~2014-01-07 16:51 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-07 13:05 Lars Poeschel
2014-01-07 14:20 ` Greg KH
2014-01-07 16:51   ` Alan Cox [this message]
2014-01-08 13:26     ` Lars Poeschel
2014-01-07 16:58   ` Lars Poeschel

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