scsw_cmd_is_valid_key(9)

📦 version 7.3.1, in nixpkgs unstable

💅 scsw_cmd_is_valid_key — check key field validity ✨

okay bestie, so we're looking at scsw_cmd_is_valid_key from the Kernel API Manual — yes it's a whole kernel manpage, and yes you're gonna understand it, periodt 🫶

🌸 SYNOPSIS 🌸

int scsw_cmd_is_valid_key (union scsw *scsw );

🎀 ARGUMENTS 🎀

  • scsw — pointer to scsw. that's it, that's the whole arg, she's just a pointer to the scsw union 💖

💅 DESCRIPTION 💅

okay so real talk — this function does a vibe check on the key field 🔥

It returns non-zero if the key field of the specified command mode scsw is valid, and zero otherwise. literally that's the whole function, no cap. valid key = truthy, invalid key = 0, and that's the tea 🍵

🦋 SEE ALSO 🦋

the squad, in full, no one gets left behind 🫶:

Kernel file ./arch/s390/include/asm/scsw.h, then:

ngl bestie, if you're out here reading the whole scsw family in one sitting, hydrate first. icon behavior though 👑

that's the whole page!! 💖 signed, sealed, and sourced straight from the kernel file ./arch/s390/include/asm, October 2026 edition 🎀 slay ✨

📦 where this page comes from