As i have mentioned many times on the forum, I want to develop a system that will sense signal through ADC, will store data and transfer it to PC through USB communication. Can I consider my device of the class - mass storage? I want to go for mass storage as Windows has driver defined for it.
if you want to save your data on PC, then why don't you use LABVIEW? it will give you a data acquisition, storage and display facility. just you need to develop a DAQ PCI card , insert into ur PC and use LABVIEW.