Thanks Bin!
I really appreciate your help. I have the 2.6.39 kernel with debugfs turned on. I can see the debugfs entries as mentioned in the processors.wiki.ti.com article. However, I'm a little confused about the procfs entries. I see /proc/bus/usb/001/001, but I'm not sure if that is the correct entry for the musb host and how to get those commands in #3 to it.
The driver source code I am looking at has the musb_ functions you mention in #3, but I am not sure how I would call those from outside of the kernel.
Thanks again