scsw_tm_is_valid_ectl(9)

✨ NAME ✨

scsw_tm_is_valid_ectl — check ectl field validity. Basically we're in the Kernel API Manual today, bestie, and this function is here to do one very specific little job. 💅

💖 SYNOPSIS 💖

int scsw_tm_is_valid_ectl (union scsw *scsw );

🦋 ARGUMENTS 🦋

• scsw — pointer to scsw. That's the whole argument, no cap. 🫶

🌸 DESCRIPTION 🌸

Okay so this function does a vibe check on the ectl field of the specified transport mode scsw. Return non-zero if the ectl field of the specified transport mode scsw is valid, and zero otherwise. That's literally it — valid or not valid, no extra drama. ✨

👑 SEE ALSO 👑

The whole friend group, fr fr — every single one is here:

• Kernel file: ./arch/s390/include/asm/scsw.h
• struct cmd_scsw(9), struct tm_scsw(9), struct eadm_scsw(9), union scsw(9)
• scsw_is_tm(9), scsw_key(9), scsw_eswf(9), scsw_cc(9), scsw_ectl(9), scsw_pno(9), scsw_fctl(9), scsw_actl(9), scsw_stctl(9), scsw_dstat(9), scsw_cstat(9)
• scsw_cmd_is_valid_key(9), scsw_cmd_is_valid_sctl(9), scsw_cmd_is_valid_eswf(9), scsw_cmd_is_valid_cc(9), scsw_cmd_is_valid_fmt(9), scsw_cmd_is_valid_pfch(9), scsw_cmd_is_valid_isic(9), scsw_cmd_is_valid_alcc(9), scsw_cmd_is_valid_ssi(9), scsw_cmd_is_valid_zcc(9), scsw_cmd_is_valid_ectl(9), scsw_cmd_is_valid_pno(9), scsw_cmd_is_valid_fctl(9), scsw_cmd_is_valid_actl(9), scsw_cmd_is_valid_stctl(9), scsw_cmd_is_valid_dstat(9), scsw_cmd_is_valid_cstat(9)
• scsw_tm_is_valid_key(9), scsw_tm_is_valid_eswf(9), scsw_tm_is_valid_cc(9), scsw_tm_is_valid_fmt(9), scsw_tm_is_valid_x(9), scsw_tm_is_valid_q(9), scsw_tm_is_valid_pno(9), scsw_tm_is_valid_fctl(9), scsw_tm_is_valid_actl(9), scsw_tm_is_valid_stctl(9), scsw_tm_is_valid_dstat(9), scsw_tm_is_valid_cstat(9), scsw_tm_is_valid_fcxs(9), scsw_tm_is_valid_schxs(9)
• scsw_is_valid_actl(9), scsw_is_valid_cc(9), scsw_is_valid_cstat(9), scsw_is_valid_dstat(9), scsw_is_valid_ectl(9), scsw_is_valid_eswf(9), scsw_is_valid_fctl(9), scsw_is_valid_key(9), scsw_is_valid_pno(9), scsw_is_valid_stctl(9)
• scsw_cmd_is_solicited(9), scsw_tm_is_solicited(9), scsw_is_solicited(9)

🎀 that's the whole page, bestie! source/version: ./arch/s390/include/asm · date: October 2026 · function: scsw_tm_is_valid_ectl(9) — now go be iconic with those ectl checks. periodt. 💖