drmm_encoder_init(9)

okay bestie, this is the drmm_encoder_init(9) page from the Kernel API Manual 💖 and it’s literally about initializing a preallocated encoder. She’s giving “automatic cleanup, no stress” energy, so let’s get into it.

🎀 NAME 🎀

drmm_encoder_init — Initialize a preallocated encoder. That’s the whole assignment: a preallocated encoder gets initialized, periodt. 💅

✨ SYNOPSIS ✨

int drmm_encoder_init (struct drm_device *dev , struct drm_encoder
*encoder , const struct drm_encoder_funcs *funcs , int encoder_type ,
const char *name , ... );

🫶 ARGUMENTS 🫶

Okay so here’s the cast of characters:

• dev — drm device. The main character device, obviously. 🖥️
• encoder — the encoder to init. This is the preallocated cutie you’re setting up. 🎀
• funcs — callbacks for this encoder (optional). Optional means optional, bestie — no pressure. 🫶
• encoder_type — user visible type of the encoder. This is the type users actually see. 👀
• name — printf style format string for the encoder name, or NULL for default name. Name her yourself, or let the default name do its thing. 💖
• ... — variable arguments. The extra args that feed that format string, iykyk. ✨

🔥 DESCRIPTION 🔥

Initializes a preallocated encoder. Fr fr, that’s the job. 💅

Encoder should be subclassed as part of driver encoder objects. That’s the structural vibe check. 🦋

Cleanup is automatically handled through registering drm_encoder_cleanup with drmm_add_action — so the cleanup arc is already written for you. The encoder structure should be allocated with drmm_kzalloc. ✨

🚨 The drm_encoder_funcs.destroy hook must be NULL. Not “maybe,” not “if you feel like it” — it must be NULL. Take this seriously, bestie. 💀

⭐ RETURN ⭐

Zero on success, error code on failure. So zero is the slay outcome, and an error code means something went sideways. 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/drm_encoder.c, overview(9)
• drm_encoder_init(9)
• drm_encoder_cleanup(9)

mwah 💋 — source/version: ./drivers/gpu/drm; date: October 2026. That’s the whole page, bestie — go init responsibly. 🫶