genwqe_get_slu_id(9)

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

Okay so picture this: you're deep in the kernel, you're looking at a genwqe card, and you need to know what Service Layer Unit Id it's rocking. That's the whole vibe of this page, and honestly? It ate. This is a page from the Kernel API Manual and it's all about one little lookup function, so grab your matcha and let's go 🍓

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✨ NAME ✨

genwqe_get_slu_id — Read Service Layer Unit Id

Like, it reads the SLU id. That's it. That's the function. Slay 💅

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🌸 SYNOPSIS 🌸

int genwqe_get_slu_id (struct genwqe_dev *cd );

Returns an int, takes a struct genwqe_dev * named cd, and that's the entire signature. No cap, it's giving "short and iconic" ✨

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🎀 ARGUMENTS 🎀

• cd — okay so the original manpage literally just says -- undescribed -- for this one 😭 bestie the docs said "no thoughts, head empty" and honestly I respect the honesty. All we know for sure is it's a struct genwqe_dev * (you can peep the SYNOPSIS if you don't believe me), and imma leave it at that rather than make something up, because inventing behavior is not the move 🙈

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🔥 RETURN 🔥

Here's the tea, the function returns an id and the ids have lore:

• 0x00 — Development code (the beta-era vibes 👑)
• 0x01 — SLC1 (old) (grandma era, respect her 🫶)
• 0x02 — SLC2 (sept2012) (the september 2012 glow-up ✨)
• 0x03 — SLC2 (feb2013, generic driver) (february 2013, and specifically the generic driver one 💅)

So like, four possible values, each with its own little timestamped backstory. Iykyk 🌈

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💜 SEE ALSO 💜

Go touch some related code, bestie, there's a whole friend group:

• Kernel file ./drivers/misc/genwqe/card_base.h
• struct genwqe_reg(9)
• struct dma_mapping(9)
• struct ddcb_queue(9)
• struct genwqe_dev(9)
• enum genwqe_requ_state(9)
• struct genwqe_sgl(9)
• struct ddcb_requ(9)
• struct genwqe_file(9)
• genwqe_write_vreg(9)
• genwqe_read_vreg(9)
• __genwqe_execute_ddcb(9)
• __genwqe_execute_raw_ddcb(9)
• genwqe_is_privileged(9)

That's the whole squad, not one skipped, we don't do leaving people out here 🧚

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💀 Friendly reminder that the cd argument is genuinely listed as -- undescribed -- in the source material. I'm not being lazy, the manpage is. Don't come for me 😭

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And that's the page!! Wrapped up with love from the ./drivers/misc/genwqe corner of the tree, dated October 2026 — mwah, go read some registers, ily, periodt 💖🦋⭐