How to Fix Can I use an SSDT USB .aml patch file from Clover in OpenCore
USB issues are caused by the 15-port limit in macOS, missing USB mapping, or incorrect port configuration.
Quick Fix Steps
- Map your USB ports: Use USBToolBox or USBMap to identify active ports and create a custom USBMap.kext.
- Respect the 15-port limit: macOS only allows 15 USB ports per controller; map only the ports you actually use.
- Check USBInjectAll: Remove USBInjectAll after creating a proper map, as it is only for debugging.
- Verify USB 3.0: Ensure XHCI controllers are enabled in BIOS and USB 3.0 ports are mapped to the correct controller.
Verification
- All needed USB ports recognise devices.
- USB 3.0 speeds are achieved on USB 3.0 ports.
- No kernel panics when plugging/unplugging devices.
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Original Question: "Can I use an SSDT USB .aml patch file from Clover in OpenCore?"
I'm running a Gigabyte Aorus z390 Ultra on OpenCore 0.6.1with Catalina. I've been trying to get my head into USB mapping and have been battling along with USBmap to create a new USBports.kext but have yet to succeed. When I restart to map the second set of ports they don't appear even though NVRAM appears to be working ok.
I do however have a .aml for the USB ports from when I used Clover and Mojave. Can I use this with OpenCore and Catalina? I worked great under the old system. Don't want to reinvent the wheel if I don't have to! Thanks.
Edit: (I have read through the Clover conversion guide, but I didn't make this clear and I'm unsure where to add it in my config.plist to just try it!)
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