LIBNVME_GET_DIRECTIVE_RECEIVE_LENGTH-LIBNVME3(2)

💖 NAME 💖

libnvme_get_directive_receive_length — bestie, this one gets you the directive receive length, and it's from the libnvme API manual (section 9, iykyk) ✨

🌸 SYNOPSIS 🌸

int libnvme_get_directive_receive_length (enum nvme_directive_dtype
dtype , enum nvme_directive_receive_doper doper , __u32 *len );

🎀 ARGUMENTS 🎀

• dtype — the directive type, obvi. peek at enum nvme_directive_dtype to see your options 💅
• doper — the directive receive operation, like which flavour of receive we're doing. check enum nvme_directive_receive_doper for the lineup 🦋
• len — on success this gets set to this directive's payload length in bytes. so it's the output, the main character, the one you've been waiting for 👑

⭐ RETURN ⭐

• 0 on success — slay, you ate 💖
• -1 with errno set to EINVAL if the function did not recognize dtype or doper 😭 like it literally looked at your args and went "who dis" — so double-check those enums, fr fr

ngl if you get -1 it's not a vibe. EINVAL means one of those two enum values wasn't something it knows, so go back and check dtype and doper before you spiral 🙈

okay that's the whole page bestie, no cap, every detail preserved 🫶

this was the libnvme API manual, dated October 2026 — mwah, go touch some registers 💅✨