sdw_nwrite_no_pm(9)

📦 version 7.3.1, in nixpkgs unstable

✨ sdw_nwrite_no_pm — like, the whole vibe ✨

okay so this is a page from the Kernel API Manual bestie, and we're talking about sdw_nwrite_no_pm 💅 it lives in section 9, it's giving "write n contiguous SDW Slave registers with no PM" energy, and honestly? she's iconic. let's get into it 🫶

🌸 NAME 🌸

sdw_nwrite_no_pm — Write "n" contiguous SDW Slave registers with no PM ✨

🎀 SYNOPSIS 🎀

int sdw_nwrite_no_pm (struct sdw_slave *slave , u32 addr , size_t count
, const u8 *val );

that's the whole signature, no cap 💖

🦋 ARGUMENTS 🦋

  • slave — the SDW Slave, your main character here 👑
  • addr — Register address, like the address of the register, you know the drill 🏠
  • count — length (yes bestie, that's the whole description, it said "length" and honestly same) 📏
  • val — Buffer for values to be written 🍓 this is where your actual data lives

💜 DESCRIPTION 💜

okay so real talk for a sec 🙈 — note that if the message crosses a page boundary each page will be transferred under a separate invocation of the msg_lock.

like, that's the whole description, no filler, no fluff, and honestly? we respect it 💀🙌 so if your message spans pages, that lock gets invoked per page, separately, that's just how it is 🧚

no PM in the name, no PM in the game — the function is literally called no_pm and the title says "with no PM", so iykyk 💅

🌈 SEE ALSO 🌈

related reading, the whole friend group fr fr 💖 the kernel file ./drivers/soundwire/bus.c plus all of these lovely humans:

⭐ and that's the page!! brought to you by ./drivers/soundwire, dated October 2026, thanking you for coming to my ted talk 💖 slay, stay hydrated, and may all your page boundaries be kind to you 🎀💅✨

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