regmap_sccb_read(9)

💖 regmap_sccb_read(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's regmap_sccb_read(9), and it's honestly such a little icon. it reads stuff off an SCCB slave device and it does it with the most extra transmission choreography. come sit with me 🫶

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✨ SYNOPSIS ✨

int regmap_sccb_read (void *context , unsigned int reg , unsigned int *val );

like, that's the whole vibe. three args, one int back. no cap. 🎀

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🌸 ARGUMENTS 🌸

• context — the device you're gonna be interacting with. your main character, if you will 👑
• reg — the register getting read from. yes, that one. 🎯
• val — a pointer, and it's where the read value gets stored. lowkey its whole job 💅

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🦋 DESCRIPTION 🦋

so here's the tea: this runs a 2-phase write transmission cycle, and then right after that it's followed by a 2-phase read transmission cycle. that's it. that's the whole ritual. ✨

it returns a negative errno if things go sideways, otherwise zero on success. periodt. 💀

ngl bestie, that's genuinely all the page says — this function is mysterious and doesn't overshare. respect honestly 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/base/regmap/regmap-sccb.c — literally the source, go look 👀
• sccb_is_available(9) — the vibe check 💅
• regmap_sccb_write(9) — the sibling, the other half of the duo 🫶

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and that's the page, bestie!! 🌟 this legendary little doc comes to you from the source <pink>./drivers/base/regmap</pink> and it's dated October 2026 — so like, future-coded of it honestly. go read some registers, you got this 💖✨🎀