I check and find that I need a kernel > 2.6.18 But the latest stable Centos 5 kernel is 2.6.18. The developer said 2.6.18 has problem in ttyUSB handling
I try the mainline 2..6.38 but it fails to compile Dadhi and so asterisk is not working.
Have tried to put in three sticks at the same time. Recognize two, the third one has problem in recognition . Not due to software but firmware problem.