From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <485F7999.8040502@domain.hid> Date: Mon, 23 Jun 2008 12:23:21 +0200 From: Antoine Nourry MIME-Version: 1.0 References: <485E48A0.6050706@domain.hid> <200806230031.32512.berlemont.hauw@domain.hid> In-Reply-To: <200806230031.32512.berlemont.hauw@domain.hid> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Subject: Re: [Xenomai-help] Daq System Compatibility List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org Alexis Berlemont a =E9crit : > Hi, > > =20 >> 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 driv= ers. >> How can we know if an hardware will be usable with Xenomai ?=20 >> Do we need=20 >> the driver sources in order to be able to rewrite it for real time >> purposes ? >> =20 > > A nice way would be to recover the Linux driver and make it work with C= omedi=20 > (which is a kind of framework for acquisition drivers, an RTDM port is=20 > available). > > Do you have the driver sources ? Just to see how it works... > > To fully comply with real-time constraints, maybe usb20rt might be=20 > necessary... > > Best regards. > > Alexis. > > > > =20 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.