OPPO Kernel Craftsman
Dec 24, 2021 · Fundamentals
Understanding SPI Protocol, Hardware Interface Design, Timing Diagram, and Linux Kernel Driver Framework
SPI is a high‑speed, full‑duplex serial bus using four pins (CS, SCK, MOSI, MISO) with configurable clock polarity and phase, whose timing diagram shows data transfer on clock edges, and Linux provides a driver framework built around spi_driver, spi_transfer, and spi_message structures for reliable sensor communication.
Device DriverEmbedded SystemsHardware Interface
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