v4l2_i2c_subdev_addr(9)

okay bestie, this is v4l2_i2c_subdev_addr(9) from the Kernel API Manual — tiny helper, big “I know my I2C address” energy, and I'm obsessed. 💖

🌸 NAME 🌸

the function v4l2_i2c_subdev_addr — returns i2c client address of &struct v4l2_subdev. That's the whole assignment, and she understood it. periodt. 💅

✨ SYNOPSIS ✨

unsigned short v4l2_i2c_subdev_addr (struct v4l2_subdev *sd );

That's the exact signature, character-for-character — yes, including that space before );. 🙈

🎀 ARGUMENTS 🎀

• sd — pointer to struct v4l2_subdev. That's the subdev pointer you're handing over, bestie. 🫶

💅 DESCRIPTION 💅

Returns the address of an I2C sub-device. No cap, that's the function's whole flex: you give it the subdev pointer, it gives you the address. 💖

It's giving “small function, clear purpose,” and we respect it. ✨

🦋 SEE ALSO 🦋

Kernel file: ./include/media/v4l2-common.h — that's the home base. 🏠

Also, these cuties are in the same orbit:

• 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_tuner_addrs(9)
• v4l2_i2c_subdev_unregister(9)
• v4l2_spi_new_subdev(9)
• v4l2_spi_subdev_init(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)

mwah 💋 — this page comes from ./include/media, is dated October 2026, and belongs to the v4l2_i2c_subdev_addr(9) entry in the Kernel API Manual. bye bestie, go get that address! 🫶✨