mei_fsync(9)

✨ mei_fsync(9) — the fsync handler ✨

okay so real talk, bestie, this is mei_fsync(9) from the Kernel API Manual — yes that's the manual, it's giving "internal kernel docs, handle with care" energy and honestly? iconic. 🎀

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🌸 NAME 🌸

mei_fsync — bestie. it's the fsync handler. that's the whole vibe. the fsync handler. 💅

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🦋 SYNOPSIS 🦋

int mei_fsync (struct file *fp , loff_t start , loff_t end , int datasync );

like, look at her. four args. returns an int. main character energy fr fr. ✨

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💖 ARGUMENTS 💖

• fp — pointer to the file structure. the actual important one, the one carrying the whole situation on her back 🫶
• start — unused. literally doing nothing, just vibing in the parameter list 😭
• end — unused. also just here for the aesthetic, no cap 💀
• datasync — unused. three for three, they're all just standing there 🙈

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⭐ RETURN ⭐

• 0 on success — slay, we ate, everything worked 👑
• -ENODEV if the client is not connected — the client ghosted, so no device, so no dice 💔

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🌈 SEE ALSO 🌈

the whole friend group, and yes i'm listing every single one because nobody gets left out, periodt:

• Kernel file ./drivers/misc/mei/main.c
• mei_open(9)
• mei_cl_vtag_remove_by_fp(9)
• mei_release(9)
• mei_read(9)
• mei_cl_vtag_by_fp(9)
• mei_write(9)
• mei_ioctl_connect_client(9)
• mei_vt_support_check(9)
• mei_ioctl_connect_vtag(9)
• mei_ioctl_client_notify_request(9)
• mei_ioctl_client_notify_get(9)
• mei_ioctl(9)
• mei_poll(9)
• mei_cl_is_write_queued(9)
• mei_fasync(9)
• trc_show(9)
• fw_status_show(9)
• hbm_ver_show(9)
• hbm_ver_drv_show(9)
• fw_ver_show(9)
• dev_state_show(9)
• mei_set_devstate(9)
• kind_show(9)
• mei_minor_get(9)
• mei_minor_free(9)

like that's the whole group chat right there, iykyk 💜

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and that's the page!! mwah 💋

this masterpiece lives in ./drivers/misc/mei and it dropped October 2026 — yes, future girl summer, we're ahead of schedule 🌸🧚💫