parse_hex_sentence(9)

💖 parse_hex_sentence(9) — like, the Kernel API Manual page, bestie 💖

okay so bestie, we're talking about parse_hex_sentence today, and honestly? she's a little icon. the whole gig is converting an ascii hex representation into a byte array. that's it, that's the vibe. 🎀

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✨ NAME ✨

parse_hex_sentence — Convert a ascii hex representation into byte array.

like literally that's her whole personality and she's slaying it 💅

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🌸 SYNOPSIS 🌸

int parse_hex_sentence (const char *in , int isize , u8 *out , int osize
);

yes the spacing is exactly like that, don't come for her 🫶

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🦋 ARGUMENTS 🦋

bestie there are four of them, let's go one by one:

• in — the input buffer of ascii. the raw material, the moment, the source ✨
• isize — length of input buffer. you gotta tell her how much of in actually matters, she's not a mind reader 😭
• out — the output buffer. this is where the parsed bytes get to live their best life 💜
• osize — length of output buffer, e.g. max number of bytes to parse. it's giving "know your limits, queen" 👑

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🔥 DESCRIPTION 🔥

so an valid input is a series of ascii hexadecimal numbers, separated by spaces. and yes the manpage literally says "an valid input", we're keeping the lore intact, no cap 💀

an example valid input is:

"   00 f2 0    000076 6 0  ff"

look at all those extra spaces — she does not care, she's unbothered, she's thriving 🌈

⚠️ ok but here's the cautionary tale: if an individual "word" within the hex sentence is longer than MAX_WORD_SIZE, then the sentence is illegal, and parsing will fail. so like... don't test her. she WILL fail on you. fr fr 😤

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⭐ RETURN ⭐

• number of bytes parsed — slay, success, we ate 🍓
• or a negative error code on failure — not slay, but at least she tells you 😭

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🧚 SEE ALSO 🧚

go be nosy, bestie, iykyk:

• Kernel file ./drivers/platform/chrome/wilco_ec/debugfs.c — mentioned right there alongside h1_gpio_get(9), test_event_set(9), and wilco_ec_debugfs_probe(9) 💖
• h1_gpio_get(9)
• test_event_set(9)
• wilco_ec_debugfs_probe(9)

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okay that's the whole page, you're basically an expert now 👑 this cutie lives in ./drivers/platform/chrome/wilco_ec/debugfs.c (source teased as ./drivers/platform/chrome/wilc... in the footer) and she's dated October 2026, manual section parse_hex_sentence(9) — periodt. go forth and parse those hex sentences, bestie, i believe in you 💅✨🎀