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netrunner01 / USBDDOS

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Research fork of crazii/USBDDOS with targeted fixes for OHCI USB driver bugs on 386–486/Pentium DOS hardware — NEC µPD720101, ALi M5237, SiS 7001, OPTi 82C861. Patched ClearPortFeature spec violation, BIOS handoff timeouts, Legacy Support disable, and defensive HCD cleanup. Upstream tracker.

dos usb usb-devices usb-host freedos usb-driver 386 486 legacy-hardware uhci ohci usb-host-controller bios-quirks nec-upd720101 ali-m5237 sis-7001 opti-82c861 chipset-bug usb-chipset pci-quirks
  • Updated May 15, 2026
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