I wanted to solve this myself, but it is time to admit I know nothing about the kernel Internals and modules. I'm starting in the users list, hoping someone has seen this and knows of a fix, as the developers are clearly busy and this is not critical for me. I cannot get ztdummy to load, as it complains about unknown symbols. I search The kernel headers and all of the zap source and these symbols appear unique to ztdummy: fill_td insert_td_horizontal uhci_devices uhci_interrupt alloc_td unlink_td delete_desc Does anyone have ztdummy loaded on a 2.6 kernel? If it matters, I have all USB support built into my kernel and not in modules. Thanks, Dan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040114/1330d3d6/attachment.htm