Question: half-duplex and full-duplex serial driver

Question: half-duplex and full-duplex serial driver

[Mockern]

Hi,

Could you help me please, how can my serial driver to work in  half-duplex and full-duplex mode?

Thank you

Re: Question: half-duplex and full-duplex serial driver

[Bill Davidsen]

Mockern wrote:
> Hi,
> 
> Could you help me please, how can my serial driver to work in  half-duplex and full-duplex mode?
> 
> Thank you

Since you don't seem to have gotten an answer, and while this is 
probably the wrong list for your question, I can give you a pointer 
which may help.

The communications program "kermit" can do this, google for the source, 
or try kermit.columbia.edu first, and read the source to see how they do 
it. I'm reasonably sure ioctl() is the answer, but that's choice three 
for your research.

-- 
bill davidsen <davidsen@tmr.com>
   CTO TMR Associates, Inc
   Doing interesting things with small computers since 1979

Re: Question: half-duplex and full-duplex serial driver

[Valdis.Kletnieks]

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On Thu, 05 Apr 2007 18:40:55 EDT, Bill Davidsen said:
> Mockern wrote:
> > Hi,
> > 
> > Could you help me please, how can my serial driver to work in  half-duplex and full-duplex mode?
> > 
> > Thank you
> 
> Since you don't seem to have gotten an answer, and while this is 
> probably the wrong list for your question, I can give you a pointer 
> which may help.

I got the impression that they were trying to write an in-kernel driver for
a serial card, and it was oopsing.  My first guess is "bad locking",
and my first suggestion is 'Linux Device Drivers, 3rd edition'

http://lwn.net/Kernel/LDD3 last I remember.

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