Low-cost National Instruments USB data acquisition (DAQ) devices provide basic functionality for applications such as simple data logging, portable measurements, and academic lab experiments. They are affordable enough for student use yet powerful enough for more sophisticated measurement applications. Now the query is how to use this kind of HW under Linux and ur distro is ubuntu….
U may download KNOPPIX CD with comedi and use it for working on the distro.
The Data acquisition softwares are: qtscope, qtwave, comedirecord, xoscope. u may use them either way. The usb daq is part of the comedi project,
for more info link here: www.comedi.org/
It is better to use “Ubuntu Lucid Lynx” which comes with all drivers, firmware and an up-to-date comedilib package.
OR use Ubuntu Karmic Koala which also comes with all drivers and an up-to-date comedilib package. Just need to install the firmware files (\lib\firmware)
First download firmware files, change to the root directory: cd / and unpack the files: tar xzvf /tmp/usbdux_firmware.tar.gz and then install.
Remember it varies from kernel version such as 2.4 and 2.6 !