sshp_validate_crc(9)

💅 sshp_validate_crc(9) — like, the Kernel API Manual page, bestie 🎀

okay so picture this: you're deep in the Kernel API Manual (that's the manual name, yes, we're being ✨official✨) and you pull up sshp_validate_crc(9). It's giving "small function, big responsibility" and honestly? obsessed. Let's get into it 🦋

---

🌸 NAME 🌸

sshp_validate_crc — Validate a CRC in raw message data. That's it, that's the whole vibe: check the CRC, keep it moving 💅

---

✨ SYNOPSIS ✨

bool sshp_validate_crc (const struct ssam_span *src , const u8 *crc );

Not me just copying this exactly because, like, character-for-character matters — no cap 🔥

---

💖 ARGUMENTS 💖

• src — The span of data over which the CRC should be computed. i.e. the actual data pile you're checking, bestie 📦
• crc — The pointer to the expected u16 CRC value. Yes, u16, and yes, that pointer is where the stored CRC lives, not where the computed one goes. Big difference, iykyk 👑

---

🧚 DESCRIPTION 🧚

okay so here's the tea ☕ — this function computes the CRC of the provided data span (src), then compares it to the CRC stored at the given address (crc), and returns the result of this comparison, i.e. true if they're equal. Match made in heaven or a total flop, and the return value tells you which 🌈

And like, the important part: this function is intended to run on raw input/message data. Raw. Unprocessed. Straight off the wire, no filter, main character energy ✨

---

👑 RETURN 👑

Returns true if the computed CRC matches the stored CRC, false otherwise. Two outcomes, no in-between, very decisive of it honestly 💀

⚠️ heads up — true means MATCH. Don't flip it around in your head, bestie, or your whole parser is gonna have a bad time 😭

---

🫶 SEE ALSO 🫶

• Kernel file ./drivers/platform/surface/aggregator/ssh_parser.c — the mothership 🏠
• sshp_starts_with_syn(9)
• sshp_find_syn(9)
• sshp_parse_frame(9)
• sshp_parse_command(9)

the whole friend group fr fr 🥰

---

okay and one last thing for the credits, because we always give credit where it's due 🎀 this page lives over at ./drivers/platform/surface/agg... and it's dated October 2026 — and the page is, of course, sshp_validate_crc(9) itself, icon behavior ⭐💜 now go validate those CRCs, bestie, you got this 🦋🌸