Re: [Xenomai-help] Daq System Compatibility

[Antoine Nourry <nourry@domain.hid>]

Alexis Berlemont a écrit :
> Hi,
>
>   
>> i need to buy an USB DAQ system and use it with Xenomai. I have an eye
>> on the National Instruments USB 6218 which is provided with linux drivers.
>> How can we know if an hardware will be usable with Xenomai ? 
>> Do we need 
>> the driver sources in order to be able to rewrite it for real time
>> purposes ?
>>     
>
> A nice way would be to recover the Linux driver and make it work with Comedi 
> (which is a kind of framework for acquisition drivers, an RTDM port is 
> available).
>
> Do you have the driver sources ? Just to see how it works...
>
> To fully comply with real-time constraints, maybe usb20rt might be 
> necessary...
>
> Best regards.
>
> Alexis.
>
>
>
>   
First of all, thank you for your answer.

I would appreciate to make it this way. The problem is that i don't know
if NI give its sources (i'm downloading an ISO from their site...), and
i can't afford to buy a system i won't be able to use.
Generally speaking, what do we need to make a DAQ system work on a
real-time linux solution ?

Do we absolutely need the native driver sources or can we find the
necessary answers for making a new real-time driver in documentation and
hardware specifications ?

Anyway, it seems to be a harsh task to write a new driver according to
many comments.