stm32f4_i2c_write_byte(9)

💅 stm32f4_i2c_write_byte — a Kernel API Manual moment

okay so bestie, welcome to the group chat for <pink>stm32f4_i2c_write_byte</pink> (section 9 of the Kernel API Manual, iykyk) — literally the tiniest little function with the biggest "just put the byte in the register" energy 🎀

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✨ NAME ✨

stm32f4_i2c_write_byte — write a byte in the data register. that's it. that's the whole vibe. one byte. into the register. slay 💅

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🦋 SYNOPSIS 🦋

void stm32f4_i2c_write_byte (struct stm32f4_i2c_dev *i2c_dev , u8 byte
);

no return value, no drama, just vibes and a void — iconic honestly 👑

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🌸 ARGUMENTS 🌸

• i2c_dev — the controller's private data 🫶 like, this is the struct that knows everything about your I2C controller, it's giving main character energy
• byte — the data to write in the register ✨ the little guy going in. one byte. that's the whole assignment. ate and left no crumbs 🍓

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💜 SEE ALSO 💜

Kernel file ./drivers/i2c/busses/i2c-stm32f4.c — plus the struct stm32f4_i2c_msg(9), and honestly the whole friend group of related pages, no cap:

• struct stm32f4_i2c_dev(9)
• stm32f4_i2c_hw_config(9)
• stm32f4_i2c_write_msg(9)
• stm32f4_i2c_handle_write(9)
• stm32f4_i2c_handle_read(9)
• stm32f4_i2c_handle_rx_done(9)
• stm32f4_i2c_handle_rx_addr(9)
• stm32f4_i2c_isr_event(9)
• stm32f4_i2c_isr_error(9)
• stm32f4_i2c_xfer_msg(9)
• stm32f4_i2c_xfer(9)

like, go read them, they're all part of the same little family 🌈

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ngl the whole page is literally two arguments and a see-also list, but she still served 💀

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and that's the tea, bestie 🧚 this little page lives over in ./drivers/i2c/busses and it's dated October 2026 — so screenshot it, cite it, and go write that byte, periodt 💖⭐