ecryptfs_send_miscdev(9)

👑 ecryptfs_send_miscdev(9) — Kernel API Manual 👑

🦋 NAME 🦋

ecryptfs_send_miscdev — and that’s literally it, bestie: the original NAME line is ecryptfs_send_miscdev - with nothing after the dash. Minimalist queen energy, no cap. 💅

✨ SYNOPSIS ✨

int ecryptfs_send_miscdev (char *data , size_t data_size , struct
       ecryptfs_msg_ctx *msg_ctx , u8 msg_type , u16 msg_flags , struct
       ecryptfs_daemon *daemon );

🌸 ARGUMENTS 🌸

• data — Data to send to daemon; may be NULL. Yes bestie, NULL is allowed here. ✨
• data_size — Amount of data to send to daemon.
• msg_ctx — Message context, which is used to handle the reply. If this is NULL, then we do not expect a reply. 🫶
• msg_type — Type of message.
• msg_flags — Flags for message.
• daemon — eCryptfs daemon object.

💜 DESCRIPTION 💜

Okay so here’s the move: add msg_ctx to the queue and then — if it exists — notify the blocked miscdevess about the data being available. (And yes, miscdevess is the spelling from the original, bestie; I’m not fixing the lore. 😭)

⚠️ Must be called with ecryptfs_daemon_hash_mux held. Not optional — that’s a hard requirement, fr fr.

Returns zero on success; non-zero otherwise. Slay when it’s zero, side-eye when it’s not. 👀

🌈 SEE ALSO 🌈

Kernel file ./fs/ecryptfs/miscdev.c plus these icons:

• ecryptfs_miscdev_poll(9)
• ecryptfs_miscdev_open(9)
• ecryptfs_miscdev_release(9)
• ecryptfs_miscdev_read(9)
• ecryptfs_miscdev_response(9)
• ecryptfs_miscdev_write(9)
• ecryptfs_init_ecryptfs_miscdev(9)
• ecryptfs_destroy_ecryptfs_miscdev(9)

That’s ecryptfs_send_miscdev(9) wrapped, bestie 💖 — source/version ./fs/ecryptfs, dated October 2026. Periodt. 🎀🦋