nouveau_i2c_encoder_init(9)

💖 nouveau_i2c_encoder_init(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a little function in the nouveau DRM world and honestly she's giving "small but mighty" ✨

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🌸 NAME 🌸

nouveau_i2c_encoder_init — literally just: initialize an I2C slave encoder 🎀

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✨ SYNOPSIS ✨

int nouveau_i2c_encoder_init (struct drm_device *dev , struct
       nouveau_i2c_encoder *encoder , struct i2c_adapter *adap , const struct
       i2c_board_info *info );

like, four args, one int return, no drama 🫶

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🦋 ARGUMENTS 🦋

• dev — the DRM device. the main character, if you will 👑
• encoder — the encoder that's gonna get attached to the I2C device. and listen, you aren't required to have called drm_encoder_init before — no prerequisites, we love a low-maintenance queen 💅
• adap — the I2C adapter that will be used to communicate with the device. the communication pipeline, the group chat, the vibe conduit 📞
• info — the info used to create the I2C device. the required fields are addr and type — do not skip those, fr fr 🙈

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⭐ DESCRIPTION ⭐

so what does she actually do? she creates an I2C device on the specified bus — and yes, the module containing its driver is transparently loaded, so no manual module wrangling, she handles it 🧚 — and then attaches it to the specified nouveau_i2c_encoder. iconic behavior, honestly ✨

then the encoder_i2c_funcs field gets initialized with the hooks provided by the slave driver. it's giving "plug and play but make it kernel" 🔥

and one more thing: if info.platform_data is non-NULL, it will be used as the initial slave config. noted 📝

Return value: 0 on success, or a negative errno on failure. and in particular — watch out — -ENODEV is returned when no matching driver is found 😭 like, she looked, she really did, nobody answered 💀

ngl, if you get -ENODEV it's not you, it's the driver table. but also double check your addr and type, bestie 🫶

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👀 SEE ALSO 👀

• Kernel file ./drivers/gpu/drm/nouveau/dispnv04/nouveau_i2c_encoder.c — go read the source, iykyk 📖

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and that's the whole vibe check 💖 this little page came to you from ./drivers/gpu/drm/nouveau/disp... — yeah, the path gets cut off in the footer, she's mysterious like that — dated October 2026, manual name nouveau_i2c_encoder_init(9). mwah, go forth and init your encoders 🌈🎀