The first thing you should do is examine your system with the mlquery(1ml) tool. This tool prints a list of all supported ML devices on the system.
Following is an example mlquery on the system linux1:
% mlquery
SYSTEM: linux1
active UST: (default software UST source)
DEVICES:
Software DV_MMX Codec [0]
OSS audio device [0] |
This output indicates that there are two installed devices:
A software DV transcoder
An audio I/O device (which in this case is built using the Linux OSS driver)
Other options to mlquery allow you to gather more information about the installed devices. See the mlquery(1ml) man page for more information.