linux-kernel - Re: How to access correctly serial port inside module?

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Message-ID: <46632489.9070107@gmx.de>
Date:	Sun, 03 Jun 2007 22:28:57 +0200
From:	"Lars K.W. Gohlke" <lkwg82@....de>
To:	Tilman Schmidt <tilman@...p.cc>
CC:	huang ying <huang.ying.caritas@...il.com>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	linux-kernel@...r.kernel.org
Subject: Re: How to access correctly serial port inside module?

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Tilman Schmidt schrieb:
> Am 17.05.2007 08:15 schrieb huang ying:
>> I think the "serio" (through drivers/input/serio/serport.c) may be a
>> choice too, like that in linux/drivers/input/mouse/sermouse.c, which
>> is an example to program serial port in kernel space.
>
> Interesting. I wonder if that would have been a better choice for
> the Gigaset M101 driver. It seems even to have a probe mechanism
> so one could try to determine if the expected device is really
> connected to the port.
>
> Is there any documentation on this interface? I find the source a
> bit hard to understand, sparsely commented as it is.
>
> Thanks
> Tilman
>
how can I open ttyS1 with major=4 and minor=65?

Does anybody have some code to read from it the first e.g. 2bytes?

thx
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