Dev Tools · 2h ago
Bare-Metal OS Dev: Writing PCI, NVMe & FAT32 Drivers from Scratch
A developer building a custom operating system from scratch has written bare-metal drivers for PCI device scanning, NVMe block storage, and FAT32 file system parsing. The PCI scanner probes buses 0-255 to identify hardware, while the NVMe driver maps MMIO registers and implements command submission queues. This work enables the OS to read and write disk blocks without relying on legacy BIOS or existing driver stacks.
Meridian48 take
This is a deep-dive technical tutorial for OS development enthusiasts, not a product or company announcement — valuable for the niche but irrelevant to mainstream tech news.
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V.E.L.O.C.I.T.Y.-OS: Writing Bare-Metal Drivers – PCI, NVMe & FAT32 (Part 9) →
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