Accessing hardware under RTEMS

[Gerwin Pfab]

On Wed, 13 Sep 2000, OUTWATER wrote:

> Greetings all - 
> 
> I have an application in which I need to provide contol of miscellaneous 
> peripheral devices such as:
> 
> LEDs
> Memories (SRAM, FIFO)
> Hardware control registers
> 
> It seems like the best/elegant/preferred way to do this is via RTEMS device 
> drivers.
> 
> Opinions?
> 

I think that depends on your needs. Controlling some LEDS can be done by a
set of simple functions or even by some macros, so why bother about a
device driver? 

If your SRAM, FIFO and hardware control registers have application
dependant meanings, writing a library that abstracts the functionality
from the implementation may be the best solution.

If your Hardware implements something that should have a interface like a
character or block device, then a device driver is needed.
 
> If a device driver is the way to go, is there a basic example of one somewhere 
> that I could use as a starting point?
> 
> Thanks!
> Keith
> 

Regards 

Gerwin 

Gerwin Pfab <pb at schenk.isar.de>   Dr. Schenk Industriemesstechnik GmbH
Dipl. Ing.                        Einsteinstrasse 37 
Software Engineering              D-82152 Martinsried
                                  Tel: +49-89-85695-0
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