I recommend giving 9front a try and see if your USB devices are detected.
If not then you are either out of luck or have a new project.

On Fri, Jun 9, 2023, 3:22 PM Marco Feichtinger <marco@germteig.com> wrote:

> I have an AsRock Rack E3C226D2I Motherboard.
> When I boot the standard plan9 kernel after a fresh install (9legacy) it
> doesn’t detect my usb devices (Keyboard, Mouse).
> 
> срu6: 2493MHz GenuineIntel P6 (cpuid: AX Bx306C3 DX 0xBFEBFBFF)
> срu3: 2492MHz GenuineIntel P6 (cpuid: AX 0x306C3 DX 0xBFEBFBFF)
> cpu7: 2495MHz GenuineIntel P6 (cpuid: AX 0x306C3 DX 0xBFEBFBFF)
> pcirouting: ignoring south bridge PCI.0.31.0 8086/8C56
> #l0: i210: 1Gbps port 0xF7200000 irq 5: d0509946c794
> #l1: i210: 1Gbps port 0xF7100000 irq 10: d0509946c795
> ahci: Tunk: vid 0x8086 did 0x8c02
> #S/sdE: unknown: 0xf7310000 sata 3, 6 ports, irq 10
> mpintrenable: out of choices eisa -1 isa 6 tbdf 0xffffffff irq 6
> intrenable: couldn't enable irq 6, tbdf 0xFFFFFFFF for floppy
> 3506M memory: 256M kernel data, 3249M user, 3874M swap
> ehci 0xe0003000: port 1 didn't reset within 500 ms: sts 0x1101
> usb/hub... sdE0: LLBA 30,932,992 sectors: SuperMicro SSD SOB20R
> SMC0515D92620AOM
> 2164 [mediachange]
> SdE1: LLBA 937,703,088 sectors: INTEL SSDSC2KG480GZ 7CV10100
> BTYJ231302P1480AGN
> [mediachange]
> SdE2: LLBA 937,703,088 sectors: INTEL SSDSC2KG480GZ 7CV10100
> BTYJ231303DY480AGN
> [mediachange]
> time...
> fossil(#S/sdE0/fossil)...version...
> init: starting /bin/rc
> mpintrenable: out of choices eisa -1 isa 6 tbdf 0xffffffff irq 7
> intrenable: couldn't enable irq 7, tbdf 0xFFFFFFFF for lpt
> 
> After usb/hub i expected to find usb/kb for initialising my keyboard and
> mouse.
> 
> I also have an PS2 Keyboard which works just fine.
> With that I tried, after rio is up and running, to tried to manually start
> usb/kb, which gave following output
> 
> usb/kb: no unhandled devices found
> 
> I tried to tweak some settings in the bios, but no luck.
> 
> Is my board broken?
> I expected it to work, since looking at the boards specifications it
> should be supported by plan9.
> Has anyone an idea?
> 
> Thanks
> 
> -marco
> 

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