DRIVER DESCRIPTION(9)

💖 Driver description 💖

okay so bestie, welcome to the Kernel API Manual, section 9 — this is the part where we talk about a driver, and honestly? it's giving main character energy ✨

🌸 NAME 🌸

Driver description — literally the whole vibe check on what this driver does 🦋

💅 DESCRIPTION 💅

ok so picture this: this driver supports a MUX on an SPI bus. no cap, that's the whole thing 🔥

and like… why would you even want that? because sometimes you need more chip selects than the hardware peripherals actually support 😭 or more than are available in a particular board setup. been there, bestie. we've all been there 💀

so here's the slay part: the driver will create an additional SPI controller 👑

and any devices you add under the mux? those get handled as 'chip selects' on this controller. periodt. that's it, that's the magic 🎀

✨ SEE ALSO ✨

• Kernel file ./drivers/spi/spi-mux.c
• struct spi_mux_priv(9)

🫶 friendly reminder: this whole page lives under ./drivers/spi, so go peek at the source if you want the full lore, iykyk 💜

okay bye bestie, go forth and multiplex 🌈💖 — this was the Kernel API Manual, dated October 2026, and yes the source location is ./drivers/spi in case you forgot already 🙈 🍓