LIBNVMF_CONTEXT_SET_DEVID_FILE-LIBNVME3(2)

✨ libnvmf_context_set_devid_file ✨

okay so bestie, welcome to the libnvme API manual, section 9 (that's the libnvmf_cont...t_devid_file(9) corner of the manual, iykyk) 💅

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🌸 NAME 🌸

libnvmf_context_set_devid_file — set the devid file for a context, literally that's the whole gig 🎀

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🦋 SYNOPSIS 🦋

int libnvmf_context_set_devid_file (struct libnvmf_context *fctx , const
       char *devid_file );

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💖 ARGUMENTS 💖

• fctx — the Fabrics context, your main character 🫶
• devid_file — the path to the output file, like where the good stuff gets written ✨

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🔥 DESCRIPTION 🔥

So what this does is configure a file that libnvmf_connect uses to record the kernel-assigned device name (for example, "nvme0"). no cap, that's the vibe 💀

If the controller is already connected, the existing device name is written. Otherwise, the device name gets written after the controller is connected. either way you get your name in the file, slay 🌈

heads up bestie: the output file is created before attempting the connection. And if the file cannot be created — for example because the parent directory does not exist — libnvmf_connect fails without attempting the connection. so like… no file, no connect. periodt 😭

This is intended for applications that need to identify the device associated with a connection — for example, to disconnect it later. very "who are you and how do i find you again" energy fr fr 👑

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⭐ RETURN ⭐

0 on success, negative error code otherwise. simple as that, icon behavior 💜

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and that's the tea 🍓 this page came from the libnvme API manual, October 2026 edition — go off and go connect some devices, bestie 🧚💖