linux-kernel - Re: 3.4.10 N_GSM tty

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Message-ID: <20120906140137.75ebe6ba@pyramind.ukuu.org.uk>
Date:	Thu, 6 Sep 2012 14:01:37 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	khalasa@...p.pl (Krzysztof Hałasa)
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 3.4.10 N_GSM tty_io WARNING and lockup

On Wed, 05 Sep 2012 12:56:03 +0200
khalasa@...p.pl (Krzysztof Hałasa) wrote:

> Hi,
> 
> I'm trying to use GSM tty line discipline. Basically
> 
> echo AT+CMUX=0 > /dev/ttyS0
> 
> set termios (speed etc.)
> int ldisc = N_GSM0710;
> ioctl(fd, TIOCSETD, &ldisc);

Baffled at this point. If you set some other ldisc instead (eg PPP) can
you reproduce it the same way ?
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