Sleep problems

Hello,

on a HP elitebook 8770w with Yosemite (system is defined as a bmp10,1; using dsdt and ssdt, and patched aicpm), I have the problem that sleep doesn't work. Immediately when it would sleep it wakes up, sleeps, wakes up,...

In the console I've got lines saying the wake up was caused by LANC, as well as the wakeup might have been caused by a USB device.

Of course I read the guides regarding this problem, but I'm stuck: the usual way recommended is to switch of "Wake up by LAN" and "Wake up by USB" in BIOS, but my BIOS doesn't offer those (it offers "Wake by USB while on battery", which doesn't help me a lot, since I anyway don't care about Sleep whenever the laptop is only on battery).

So I assume (but please correct me, if there are other options) that I have to do it via DSDT. But I have no clue, how to disable the wake ups there, or at least with what keywords I should use google with (the ones I've tried show no possible solution at all or only things people have tried without success).

Thanks in advance!