ax_spi_get_rx_byte(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ax_spi_get_rx_byte(9) — like, the whole kernel API manual vibe ✨

okay so bestie, welcome to the Kernel API Manual page for ax_spi_get_rx_byte — yes it's a real function name, no I didn't make it up, and yes it's lowkey iconic 🎀

🌸 NAME 🌸

ax_spi_get_rx_byte — gets a byte from the RX FIFO buffer 🦋

✨ SYNOPSIS ✨

u8 ax_spi_get_rx_byte (struct ax_spi *xspi );

🎀 ARGUMENTS 🎀

  • xspi — the controller's private data, typed as struct ax_spi * (so like, all the spicy internal stuff lives in there 💅)

🌈 DESCRIPTION 🌈

okay so here's the whole vibe: this function handles the logic of extracting bytes from the 32-bit RX FIFO. it's giving "buffered word girlboss" and honestly? it ate ✨

the way it works is — it reads a new 32-bit word from AX_SPI_RXFIFO only when the current buffered word has been fully processed, i.e. all 4 bytes extracted. periodt. not a byte sooner 💀

then it extracts bytes one by one, assuming the controller is little-endian. that's the whole thing. no cap 🫶

bestie pls remember: the little-endian assumption is just how it's written, so don't come for me if you're out here with a big-endian controller 🙈

⭐ RETURN ⭐

the next 8-bit byte read from the RX FIFO stream. that's it, that's the tea 🍓

💖 SEE ALSO 💖

kernel file: ./drivers/spi/spi-axiado.c

and the whole friend group, aka every single one of these, no skipping 👑

and that's the page!! 💜 brought to u straight from ./drivers/spi, dated October 2026, and honestly this manpage ate and left no crumbs 😭🔥 mwah, go read the source bestie 🧚

📦 where this page comes from