I believe the GenericUsbXHCI.kext may be working again in El Capitan Version 10.11.2 from what I have been reading. I also read there working on some fixes and compiling a newer version. I also read port restriction will no longer matter once the new version is complete, some modification with increasing the number of the IOProbeScore from 1000 to 2000 and by doing this, the Generic kext will load instead of AppleUsbXHCI.kext, and since the AppleUsbXHCI.kext will not load the port restriction kext, AppleUSBXHCIPCI will not load as well . This is the greatest news yet to say the least!!
I have seen reports the Via chips are working again but not sure about ASMedia1024? I will be trying later this afternoon.
I can't post any links just do a google search you will find the thread on this.