ax_spi_get_rx_byte_for_irq(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay so bestie, welcome to ax_spi_get_rx_byte_for_irq(9) from the Kernel API Manual 💅 — this icon gets a byte from the RX FIFO buffer, and that's literally the whole vibe.

✨ SYNOPSIS ✨

u8 ax_spi_get_rx_byte_for_irq (struct ax_spi *xspi );

🎀 ARGUMENTS 🎀

  • xspi — the controller's private data, typed as struct ax_spi * 🫶

🦋 DESCRIPTION 🦋

so this function handles the whole logic of extracting bytes from the 32-bit RX FIFO. It reads a new 32-bit word from AX_SPI_RXFIFO only when the current buffered word has been fully processed — meaning all 4 bytes have been extracted 👑

then it pulls the bytes out one by one, assuming the controller is little-endian. no cap, that's the assumption 💀

lowkey important: the little-endian thing is baked into the extraction, bestie — don't forget it 🫶

🌸 RETURN 🌸

the next 8-bit byte read from the RX FIFO stream, periodt ✨

🌈 SEE ALSO 🌈

Kernel file: ./drivers/spi/spi-axiado.c 💾

the whole squad:

that's the page, bestie 🫶 — source/version ./drivers/spi, date October 2026, and the page is ax_spi_get_rx_byte_for_irq(9). bye 💅

📦 where this page comes from