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<== Date ==> <== Thread ==>

Subject: Re: 3.14 on Linux
From: Andrew Johnson <[email protected]>
To: Eric Norum <[email protected]>
Cc: Ian A Smith <[email protected]>, [email protected]
Date: Mon, 24 Sep 2001 13:58:26 -0500
Eric Norum wrote:
> 
> Ian A Smith wrote:
> >
> > I'm just about to start an epics project and wonder how advisable it
> > would be to try and run 3.14 under Linux.  The only hard records
> > required would be an analogue with dev/drv support to talk to the serial
> > port of the pc.  All other records would be soft.  I also need dm
> > screens and remote CA.
> 
> How do you plan to communicate with the hardware?  Linux allows
> user-level in/out instructions which makes basic device access very
> simple.  You need only supply a setuid-root wrapper around your
> application to gain access to the range of I/O ports you need.

As he's only using serial ports, he should be able to just open the
relevent /dev/ttySn port from user mode, thus even an suid wrapper may be
unnecessary.

I think this would be an ideal project for 3.14.  You might want to wait
for the first Beta release which is supposed to be coming out Real Soon
Now[TM], but you could start looking at the Linux end of your serial
driver in the meantime.

- Andrew
-- 
Perfection is reached, not when there is no longer anything to add,
but when there is no longer anything to take away.
- Antoine de Saint-Exupery


References:
3.14 on Linux Ian A Smith
Re: 3.14 on Linux Eric Norum

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