Re: How to access correctly serial port inside module?

["Lars K.W. Gohlke" <lkwg82@gmx.de>]

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Jan Engelhardt schrieb:
> On May 14 2007 19:40, Lars K.W. Gohlke wrote:
> > > hallo,
> > >
> > > after searching the mailing list and searching the web, I still don't
> > > know how to access correctly the serial port (in user space known as
> > > /dev/ttyS01)
>
> http://kernelnewbies.org/FAQ/WhyWritingFilesFromKernelIsBad
>
> > > This thread ends before the answer was given and the site redirecting
> > > too is restructured:
> > > http://marc.info/?l=kernelnewbies&m=98314502419089&w=2
> > >
> > > would somebody be so kind to give me an example:
> > >
> > > with this behaviour:
> > >
> > > 1. read from port
> > > 2. output via printk()
> > > 3. write to port
>
> inb/inw/inl, printk, outb/outw/outl.
>
> > > I've created already my own char-dev and used it in user-space.
> > > However I don't know really how to get information from kernel-code to
> > > solve this.
>
> http://lwn.net/Kernel/LDD3/
>
> > would be somebody so polite and give me at least a hint?
> > Where to search concretely, or small template.
>
> It's been 4 hours and 40 minutes, and you already expect an answer?
> I don't remember you having paid anyone...
>
>
> 	Jan


sorry, for my impatience, but I saw the traffic on the list and was
wondering ... .

Nevermind, thx.
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