> 
> SIR implies IrDA.
> 
> If you want to speak proprietary Ir with some device (e.g. Nokia 6110&co)
> you need a package specifically for this purpose.  (Gnokii for the 6110..)
> 
> Or am I missing something?
> 
> //Peter
> _______________________________________________
Thank you Peter!
I think you are right. To my understanding SIR is one mode of the lowest
IrDA level (IrPHY). It was defined by HP long before the rest of the
IrDA stack (IrLAP, IrLMP, IrCOMM, ...) In such a reduced form it is
implemented in HP Palmtop 200LX. If I am right, it is nothing else than
serial communication with 9600bps to 115.2kbps using infrared
transmission. That means not a single protocol byte is added to the data
stream as it is done when using the higher layer IrCOMM. Please correct
me if I am wrong.
Now to my problem: When I plug the Tekram IR-dongle to COM1, one might
suspect that I can connect to HP200LX by using directly /dev/ttyS0. This
is actually the case but only for 9600bps, the default speed of Tekram
dongle. Why? Because to change the dongle speed a special procedure has
to be done on the serial control lines as one can see in kernel file
tekram.c. So I would prefer to use IrDA stack together with Tekram
driver, with a possibility to directly access IrPHY layer. I don't know
if this is possible in Linux IrDA implementation?
The needed package specifically for this purpose (communication with
HP200LX) that you mentioned is available. It is LXtools which was
primarily written 
for RS232 (wire !) connection. I just search for a proper Linux /dev/?
to 
do the same with IR. 


Robert
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