tomoyo_write_control(9)

📦 version 7.3.1, in nixpkgs unstable

💅 tomoyo_write_control(9) — a Kernel API Manual moment 🎀

okay so bestie, welcome to tomoyo_write_control — the write() girlie for the /sys/kernel/security/tomoyo/ interface. she's from the Kernel API Manual, she's lowkey iconic, and we're gonna get through her together. 🫶

✨ NAME ✨

tomoyo_write_control — literally the write() for the /sys/kernel/security/tomoyo/ interface. that's the whole vibe. no cap. 💖

🌸 SYNOPSIS 🌸

ssize_t tomoyo_write_control (struct tomoyo_io_buffer *head , const char
__user *buffer , const int buffer_len );

three args, one ssize_t coming back at you. we love a signature that eats. ✨

🦋 ARGUMENTS 🦋

  • head — pointer to struct tomoyo_io_buffer. yes queen, the whole struct. 🎀
  • buffer — pointer to the buffer you're reading from. it's const char __user *, so hands off the contents bestie. 🙈
  • buffer_len — the size of that buffer. const int, very demure, very mindful. ⭐

👑 DESCRIPTION 👑

so here's the tea: it returns buffer_len on success 💖 and a negative value otherwise 💀. that's it. that's the function. short and slay. periodt.

ngl if you get a negative value back, something did not pass the vibe check — that's your error signal, don't ignore her. 😭

🌈 SEE ALSO 🌈

bestie, sit down, this list is long long. she's connected to literally everyone. iykyk. 🔥

okay that's the whole page, you ate that 💅 — big slay to ./security/tomoyo for shipping this in October 2026, mwah, kisses to the version stamp, and remember: return buffer_len; on success and negative otherwise, fr fr. bye bestie 🦋💜🎀

📦 where this page comes from