Re: [Xenomai-help] real-time parallel port communication

[Jan Kiszka <jan.kiszka@domain.hid>]

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Remco den Breeje wrote:
> On Thu, Nov 5, 2009 at 6:05 AM, Peter Pastor <peter.pastor@domain.hid> wrote:
>> Hello there,
>>
>> I need to get real-time communication over a parallel port working. I got
>> the serial port to run in real-time using the drivers provided by xenomai.
>> However, I haven't found similar drivers for the parallel port yet. Does the
>> new analogy branch contain real-time drivers for the parallel port ??
>>
>> I would be happy for any hints. Also, would be cool if somebody could point
>> me to some example programs.
>>
>> Thanks,
>>  peter
>>
> 
> outb(char, 0x378) works for me. Or do you need something more fancy?

Interrupt handling, I bet. User space drivers are feasible, but can have
poor re-use factors.

I think the key to a parallel port driver is an RTDM device profile that
matches more than one use case. Suggestions welcome.

Jan


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