chsc_sadc(9)

🌸 NAME 🌸

okay so this is chsc_sadc(9) from the Kernel API Manual, and it's literally the page for set adapter device controls (SADC). bestie, that's the whole name — no extra lore, just a very specific little kernel function doing its thing 💅

✨ SYNOPSIS ✨

int chsc_sadc (struct subchannel_id schid , struct chsc_scssc_area
*scssc , dma64_t summary_indicator_addr , dma64_t
subchannel_indicator_addr , u8 isc );

🎀 ARGUMENTS 🎀

• schid — the id of the subchannel on which SADC is performed. like, this is the subchannel getting the moment 👑
• scssc — the request and response block for SADC. it's giving “both directions, one struct” energy 🦋
• summary_indicator_addr — the summary indicator address. yes, exactly that, no cap ✨
• subchannel_indicator_addr — the subchannel indicator address. keeping it separate and iconic 💅
• isc — the Interruption Subclass for this subchannel. periodt 🎀

💅 DESCRIPTION 💅

Returns 0 on success. that's it, that's the described behavior — lowkey minimalist, highkey useful 😌✨

ngl bestie, this page is short, but every detail still ate. don't invent extra behavior, don't skip the args, just read the synopsis and go slay your subchannel setup 🫶

🦋 SEE ALSO 🦋

• Kernel file ./drivers/s390/cio/chsc.c
• chsc_error_from_response(9)
• chsc_ssqd(9)
• chsc_chp_vary(9)
• chsc_scm_info(9)
• chsc_pnso(9)
• chsc_scud(9)

peace out and happy kernel-ing, bestie 🌈💖 — this page's source/version is ./drivers/s390/cio, dated October 2026, and the manual name is chsc_sadc(9) 🫶