cci_multi_reg_write(9)

💅 cci_multi_reg_write(9) — the kernel API manual, but make it make sense ✨

okay bestie, welcome to the cci_multi_reg_write glow-up 🎀 this one lives in the kernel API manual, so grab your emotional support iced coffee and let's get into it 💖

---

✨ NAME ✨

cci_multi_reg_write — write multiple registers to the device, no cap 🔥

---

🌸 SYNOPSIS 🌸

int cci_multi_reg_write (struct regmap *map , const struct
       cci_reg_sequence *regs , unsigned int num_regs , int *err );

literally the whole thing, character for character, because we do not play with signatures around here 💅

---

🦋 ARGUMENTS 🦋

• map — the register map you're writing to, iykyk 🌈
• regs — an array of structures holding register-address, -value pairs to be written; the register-addresses use CCI_REG#() macros to encode reg width 👑
• num_regs — how many registers we're writing, count 'em 🧚
• err — optional pointer to store errors; if a previous error is already set, then the write gets skipped 🙈 (yes, it just ghosts the write, iconic behaviour)

---

💜 DESCRIPTION 💜

Write multiple registers to the device, where the set of register, value pairs is supplied in any order, possibly not all in a single range 🫶 so go off, put them wherever, it's giving chaos-friendly API ⭐

Use of the CCI_REG#() macros to encode reg width is mandatory — like, not optional, not a suggestion, mandatory mandatory, periodt 💅

For raw lists of register-address, -value pairs with only 8 bit wide writes, you can use regmap_multi_reg_write instead 🌸 (a little side quest option for you)

---

🎀 RETURN 🎀

0 on success, or a negative error code on failure 😭 that's it, that's the vibe check.

---

🔥 SEE ALSO 🔥

• Kernel file ./include/media/v4l2-cci.h
• struct cci_reg_sequence(9)
• cci_read(9)
• cci_write(9)
• cci_update_bits(9)
• devm_cci_regmap_init_i2c(9)

---

ok but fr fr, read the SEE ALSO list, your besties cci_read and cci_write are right there and they ate 💖

---

kisses, this page lives in ./include/media and was dated October 2026 — source/version and date, delivered with love, slay 💅✨