4/28/2023 0 Comments Hackintool kexts in redTo build the map, you’ll use IORegistryExplorer. Now, you need to draw yourself a map of the ports you are interested in and get ready to fill-in the details. In OpenCore, patching is enabled by simply turning value of XhciPortLimit key to true ( YES) in ist: That patching is notoriously buggy and unstable thus you need to enable it only for the purpose of mapping out your ports and then disable it. In that case – and only in that case – you need to temporarily apply a kernel patch to disable that limit. This is fairly easy to do, with one caveat: what if your ACPI setup yields more than 15 ports per (one of the) controllers? macOS will ignore the upper ones and you’ll be unable to complete the mapping. Port mapping means that you know exactly which physical port maps into which logical software port, both for USB 2.0 and 3.0 paths. So, job done, for me, without actually doing any port mapping, at all. kexts because all 3 controllers have less than 15 ports (10, 10 and 8). With those two files added into ist, all of my ports were working and I did not need to create any. 2 I lack the knowledge to write these from scratch and I’m grateful those samples are available. I created these two files following the samples available in the Vanilla desktop guide. This will be done using two custom SSDT files: Hence, will remap XHC1 into XHCI and also rename second XHC0 (under GP13) into XHC2. kext mapping is based on such a simple string name, I can’t use XHC0 for two different controllers – I need to rename one of them into something else. Thus the only course of action is to rename that controller so Apple’s map – which is based on “XHC1” value in the IONameMatch – has no physical ports to work with. Whatever I do, macOS will apply that map and hide my ports 1 and 9. So in my case, I can’t override iMacPro1,1-XHC1 mapping from previous article. kext applied by macOS can’t be overridden. OpenCore kexts are loaded before macOS loads its own.Which means no kexts are placed inside /System/Library/Extensions. OpenCore is not altering macOS in any way.They were made for Intel-based builds and do not work with AMD chipsets, at all. General rule for AMD builds: ignore any guide that tells you to use USBInjectAll kext and/or USBMap tool. AMD USB Map part of OpenCore Vanilla Desktop Guide, which is the only one related to AMD stuff but also way too terse.I found its display to be confusing and incorrect. The New Beginner’s Guide to USB Port Configuration, uses Hackintool which lists active port configuration in its USB tab.USB Map by CorpNewt, useful for historical perspective and Intel-based machines.There are some interesting articles on this topic: The ultimate goal is to have all the available ports that we want working, as both USB 2.0/3.0. With the problem of USB mapping explained in the previous article, now we need to see how to workaround it. Hardware How-to: USB mapping for OpenCoreĪCPI hardware remaps, custom kexts and all that jazz.
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