McBSP Angstrom BeagleBoard code

Hello everybody,

    I am using OMAP 3530 on Beagleboard with Angstrom 2.6.32 running
on it. I try to take encoded video (data) from expansion header with
McBSP 1 with using DMA and write it onto disk. Is there anybody
interested in McBSP before and can someone help me about it? Basic
sample codes will be really useful if someone has them.
Thanks in advance