STRUCT ESW0(9)

🌸 struct esw0(9) 🌸

okay so bestie, welcome to the Kernel API Manual page for struct esw0 — it’s giving Format 0 Extended Status Word (ESW) energy, periodt. 💅

✨ NAME ✨

struct esw0 — Format 0 Extended Status Word (ESW). That’s the whole vibe: format 0, extended status word, iconic. 🫶

🦋 SYNOPSIS 🦋

       struct esw0 {
           struct sublog sublog;
           struct erw erw;
           dma32_t faddr[2];
           dma32_t saddr;
        };

look at those members, bestie — they’re the main characters 👑✨

🎀 Members 🎀

• sublog — subchannel logout. literally what it says, bestie. ✨
• erw — extended report word. iconic name, no notes. 💖
• faddr — failing storage address. yes bestie, failing storage address. 😭
• saddr — secondary ccw address. periodt. 🦋

💅 SEE ALSO 💅

Kernel file ./arch/s390/include/asm/cio.h is the source bestie — and the whole bestie squad of cross-refs is:

• struct ccw1(9)
• struct ccw0(9)
• struct erw(9)
• struct erw_eadm(9)
• struct sublog(9)
• struct esw1(9)
• struct esw2(9)
• struct esw3(9)
• struct esw_eadm(9)
• struct irb(9)
• struct ciw(9)
• struct ccw_dev_id(9)
• ccw_dev_id_is_equal(9)
• pathmask_to_pos(9)

okay that’s the page, bestie! 💖 source/version footer energy is ./arch/s390/include/asm, dated October 2026. slay. 🎀✨