stm32_firewa...ler_register(9)

💅 stm32_firewall_controller_register — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual (section 9, we're fancy here) and today's main character is stm32_firewall_controller_register. yes the name is a mouthful, we're gonna get through it together 🫶

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✨ NAME ✨

stm32_firewall_controller_register — registers a firewall controller with the STM32 firewall framework. that's it, that's the whole job, and honestly? iconic of it 👑

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🌸 SYNOPSIS 🌸

int stm32_firewall_controller_register (struct stm32_firewall_controller *firewall_controller );

like, you hand it a controller and it goes and tells the framework about it. no cap. 💫

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🎀 ARGUMENTS 🎀

• firewall_controller — the firewall controller you want to register. that's the one, that's your girl, bring her to the framework's attention pls 💖

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🦋 DESCRIPTION 🦋

okay so the actual tea 🍓: this returns 0 in case of success — slay, we love a zero — or -ENODEV if no controller was given. as in, you passed nothing. no controller. nada. the framework is looking around like "...where is she??" 😭 so yeah, don't do that.

fr fr: no controller = -ENODEV. that's the vibe check and you failed it 🙈

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🔥 SEE ALSO 🔥

• Kernel file ./include/linux/bus/stm32_firewall.h — go read it, iykyk 📖
• STM32_PERIPHERAL_FIREWALL(9)
• struct stm32_firewall_controller(9)
• stm32_firewall_controller_unregister(9) — the breakup arc 💔
• stm32_firewall_populate_bus(9)

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🌈 the cute sign-off 🌈

this little page lives in ./include/linux/bus, dated October 2026, and it's filed as stm32_firewa...ler_register(9) in the manual — yes the name got truncated, no we're not okay about it 💀

anyway, go register your controller bestie, you're gonna ate 💅✨🧚