cmdq_pkt_write_s_mask_value(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cmdq_pkt_write_s_mask_value(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ this one's a little cmdq_pkt_write_s_mask_value moment and honestly? it's giving "packet queue but make it precise." no cap 💖

🌸 NAME 🌸

cmdq_pkt_write_s_mask_value — append a write_s command with a mask to the CMDQ packet, which writes a value to a physical address 🎀

like. it writes. but masked. and to a physical address. periodt. 💅

🦋 SYNOPSIS 🦋

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

that's the whole signature, character for character, no edits from me 🫶

✨ ARGUMENTS ✨

  • pkt — the CMDQ packet 💖 this is the thing you're appending to, main character energy fr
  • high_addr_reg_idx — an internal register ID that holds the high address of the pa (physical address, iykyk) 🧚
  • addr_low — the low address of the pa 🌸
  • value — the specified target value 👑
  • mask — the specified target mask 🎀

so yeah: register index gives you the high bits, addr_low gives you the low bits, and value + mask do the actual masked-write situation. slay. 🔥

⭐ RETURN ⭐

returns 0 for success 🥳 otherwise the error code is returned 😭 (so like, always check, bestie, don't just vibe past it)

🌈 SEE ALSO 🌈

the kernel file lives at ./include/linux/soc/mediatek/mtk-cmdq.h — go read it, it ate 💜

and here's the whole friend group, every single one, no skipping:

ok that's the whole page, go forth and append your masked writes responsibly 🫶✨

sign-off time: this lil beauty comes from ./include/linux/soc/mediatek 🦋 dated October 2026 🌸 and it's filed under cmdq_pkt_write_s_mask_value(9) 💖 bye bestie, ily, read your man pages 💜

📦 where this page comes from