v4l2_spi_new_subdev(9)

💅 v4l2_spi_new_subdev 💅

okay bestie, welcome to the Kernel API Manual page for v4l2_spi_new_subdev — yes it's a mouthful, yes it's iconic, and yes we're gonna get through it together 🫶

---

✨ NAME ✨

v4l2_spi_new_subdev — loads an spi module and hands you back an initialized &struct v4l2_subdev. that's the whole vibe. it's giving "plug in, get subdev" 🔥

---

🌸 SYNOPSIS 🌸

struct v4l2_subdev * v4l2_spi_new_subdev (struct v4l2_device *v4l2_dev ,
struct spi_controller *ctlr , struct spi_board_info *info );

like, that's the signature, no notes, copy it exactly if you're typing it out 💖

---

🎀 ARGUMENTS 🎀

• v4l2_dev — pointer to struct v4l2_device. literally just a pointer to one of those, nothing more dramatic than that.
• ctlr — pointer to struct spi_controller. yes bestie, the spi controller ✨
• info — pointer to struct spi_board_info. the board info, as one does 💅

---

🦋 DESCRIPTION 🦋

returns a struct v4l2_subdev pointer. that's it. that's the description. short and slay, honestly 👑

ngl this one is bare bones — the manpage doesn't tell you anything more than "returns a struct v4l2_subdev pointer", so don't let anyone gaslight you into thinking there's a hidden paragraph. there isn't 💀

---

🌈 SEE ALSO 🌈

okay this list is LONG, grab a snack 🍓 the kernel file in question lives at ./include/media/v4l2-common.h, and here's every single friend it wants you to meet:

• 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_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)

like I said. a whole friend group 😭

---

alright that's the page!! source path is ./include/media, and it's dated October 2026 — so future-you can cite it, iykyk 💜 stay hydrated, read your kernel headers, and remember: v4l2_spi_new_subdev returns a struct v4l2_subdev pointer. periodt 🌟