The 32 devices is an xhci limitation. No way around it (/me thinks). xhci only supports up to 96 endpoints and each USB device consumes at least 3 endpoints...
And then you have a tiered structure with hubs so the number of attachable 'real' devices is reduced even further. Seriously? You want to run multiple HDDs over a single USB2 connection? And no, xhci is built-in and will always claim the USB host controller so there is no way to downgrade to USB2. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928710 Title: ubuntu server 20.04 LTS for ARM64 on Raspberry Pi4 could not handle more than 32 USB3 devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1928710/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
