v4l2_spi_subdev_init(9)

💖 v4l2_spi_subdev_init(9) — the kernel API manual, bestie edition 🎀

Okay so bestie, welcome to the <pink>Kernel API Manual</pink> ✨ — this one's all about v4l2_spi_subdev_init, and it's literally the glow-up ritual for a v4l2 subdev. No cap. 🌸

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💫 NAME 💫

v4l2_spi_subdev_init — Initialize a v4l2_subdev with data from an spi_device struct. That's the whole vibe: you got a v4l2_subdev, you got an spi_device, and this function gets them introduced. 🫶

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✨ SYNOPSIS ✨

void v4l2_spi_subdev_init (struct v4l2_subdev *sd , struct spi_device
*spi , const struct v4l2_subdev_ops *ops );

It returns void, so like… it gives nothing back. It's giving generous, not transactional. 💅

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🦋 ARGUMENTS 🦋

• sd — pointer to struct v4l2_subdev, i.e. the main character of this whole operation 👑
• spi — pointer to struct spi_device. (Yes there's a period in the original, we're keeping it, character for character, periodt. 💀)
• ops — pointer to struct v4l2_subdev_ops, the little book of what this subdev can actually do 🎀

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🌈 SEE ALSO 🌈

Kernel file ./include/media/v4l2-common.h — that's the home base for all of this, iykyk 📁✨

And the whole friend group, fr fr:

• v4l2_ctrl_query_fill(9)
• enum v4l2_i2c_tuner_type(9)
• v4l2_i2c_new_subdev(9)
• v4l2_i2c_new_subdev_board(9)
• v4l2_i2c_subdev_set_name(9)
• v4l2_i2c_subdev_init(9)
• v4l2_i2c_subdev_addr(9)
• v4l2_i2c_tuner_addrs(9)
• v4l2_i2c_subdev_unregister(9)
• v4l2_spi_new_subdev(9)
• v4l2_spi_subdev_unregister(9)
• v4l_bound_align_image(9)
• v4l2_find_nearest_size_conditional(9)
• v4l2_find_nearest_size(9)
• v4l2_g_parm_cap(9)
• v4l2_s_parm_cap(9)
• enum v4l2_pixel_encoding(9)
• struct v4l2_format_info(9)
• v4l2_get_link_freq(9)
• v4l2_get_active_data_lanes(9)
• v4l2_link_freq_to_bitmap(9)
• devm_v4l2_sensor_clk_get(9)
• devm_v4l2_sensor_clk_get_legacy(9)

Like, the entire group chat showed up. Obsessed. 🧚💜

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Heads up bestie: the original only gives you the arguments here — no return values, no error codes, no chatty behavioral notes. So don't go making stuff up about what happens inside, okay? We report, we don't speculate. 🙈

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Sign-off time 💌 — this masterpiece lives in ./include/media, and the version on the page is dated <cyan>October 2026</cyan>. Slay. Go forth and init your subdevs, bestie. 🍓💖🔥