cmdq_pkt_write_s_value(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cmdq_pkt_write_s_value — the Kernel API Manual™, bestie edition ✨

okay so you're looking at cmdq_pkt_write_s_value(9) from the Kernel API Manual, and honestly? she's a lil baddie that does one thing and does it well. 🎀

🌸 NAME 🌸

cmdq_pkt_write_s_value — appends a write_s command to the CMDQ packet, and that command writes a value to a physical address. that's the whole vibe. no cap. 🦋

✨ SYNOPSIS ✨

int cmdq_pkt_write_s_value (struct cmdq_pkt *pkt , u8 high_addr_reg_idx
, u16 addr_low , u32 value );

like yes that's a lot of args but we're gonna go through them one by one, bestie, don't panic 💖

🫶 ARGUMENTS 🫶

  • pkt — the CMDQ packet itself. she's the main character here, everything gets appended to her 💅
  • high_addr_reg_idx — the internal register ID that's holding the high address of the pa. yes, the high part lives in a register, that's just how she rolls ✨
  • addr_low — the low address of the pa. lowkey the other half of the address 😌
  • value — the specified target value. the actual thing you're writing. the moment. the icon 👑

🔥 RETURN 🔥

0 for success 🎉 — otherwise the error code comes back to you, so like… check it, bestie, don't just ignore her 😭

🌈 SEE ALSO 🌈

kernel file ./include/linux/soc/mediatek/mtk-cmdq.h — go read the source, iykyk 📖

and the whole friend group, fr fr:

like that's the whole group chat, everyone showed up 💀🫶

lowkey reminder: pkt is a struct cmdq_pkt *, high_addr_reg_idx is a u8, addr_low is a u16, and value is a u32. keep those types exactly as they are, bestie, no "fixing" them 🙈

and that's the page!! sourced from ./include/linux/soc/mediatek, dated October 2026, and she ate, no crumbs 💅✨🍓 bye bestie ily 🧚💜

📦 where this page comes from