UoWPrint

printserver.ink

Modern USB→Wi-Fi print server for driverless printing and scanning

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Systems & Performance 1 Software Engineering 1

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Spoiling Linux Kernel with "sanctioned" code

2026111 points66 comments Software Engineering details

Last year I've fixed a bug in Linux kernel OHCI (USB 1.1) stack , which rendered my old printer unreliable: OHCI adds artificial delay of 1ms for each USB transfer of send-read pattern, while my very old, host-based printer expects very tight timings and constant latency, like some kind of CnC machine.