chsc_scud(9)

💅 chsc_scud(9) 💅

okay so bestie, we're in the Kernel API Manual and this little function is giving “very specific job, very clean energy” — honestly iconic. 🦋

✨ NAME ✨

chsc_scud — Store control-unit description. 🎀

🌈 SYNOPSIS 🌈

int chsc_scud (u16 cu , u64 *esm , u8 *esm_valid );

🫶 ARGUMENTS 🫶

• cu — number of the control-unit 👀
• esm — 8 1-byte endpoint security mode values ✨
• esm_valid — validity mask for esm 💅

🔥 DESCRIPTION 🔥

This is the interface to retrieve information about the endpoint security modes for up to 8 paths of a control unit. Yeah — up to 8 paths, specifically. It's giving “gimme the endpoint security mode receipts for this control-unit” energy. 🌸

Returns 0 on success. periodt. 💖

👑 SEE ALSO 👑

• Kernel file ./drivers/s390/cio/chsc.c — the source file in the mix, iykyk 🦋
• chsc_error_from_response(9)
• chsc_ssqd(9)
• chsc_sadc(9)
• chsc_chp_vary(9)
• chsc_scm_info(9)
• chsc_pnso(9)

source/version: ./drivers/s390/cio · date: October 2026 · stay slaying, bestie 💅✨