regcache_reg_cached(9)

💅 regcache_reg_cached — a vibe check for your registers

okay so real quick: this is a page straight out of the Kernel API Manual (regcache_reg_cached(9), section 9, kernel-land, we love her 🎀). She's a tiny little function with one job and honestly? She ate. Let's get into it ✨

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🌸 NAME 🌸

regcache_reg_cached — literally just checks if a register is cached. that's it. that's the whole function. queen of doing exactly one thing 💖

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🦋 SYNOPSIS 🦋

bool regcache_reg_cached (struct regmap *map , unsigned int reg );

bestie she returns a bool. yes she's giving very "true or false, no in-between" energy. periodt 👑

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🎀 ARGUMENTS 🎀

• map — the map you wanna check. like, the regmap. the whole vibe container. you hand her this and she's like "ok got it" 🫶
• reg — the register you're asking about. the specific one. the main character register in question ✨

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🔥 DESCRIPTION 🔥

So what does she actually do? She reports if a register is cached. that's the tea ☕

That's the entire description, and honestly? iconic. no fluff, no side quests, no "well actually if you—" nope. she reports if a register is cached. slay 💅

ngl this is the kind of function you call before you do something and then go "ok cool so it's cached" and move on with your life. very lowkey, very demure 🧚

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⭐ SEE ALSO ⭐

if you're obsessed with this one (and why wouldn't you be 💜), the whole friend group lives here:

Kernel file ./drivers/base/regmap/regcache.c and her besties:

• regcache_read(9)
• regcache_write(9)
• regcache_sync(9)
• regcache_sync_region(9)
• regcache_drop_region(9)
• regcache_cache_only(9)
• regcache_mark_dirty(9)
• regcache_cache_bypass(9)

go read them all. group chat is popping off 🌈🔥

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and that's the whole page, bestie 💖 this little gem lives in ./drivers/base/regmap, it's dated October 2026, and yes — it's filed under regcache_reg_cached(9) because she's consistent like that. mwah 🍓💋