mei_read(9)

🌸 NAME 🌸

okay bestie, meet mei_read(9) from the Kernel API Manual — she is the read function, and that is literally the whole name section, periodt. 💅✨

✨ SYNOPSIS ✨

this is the signature, exactly as it comes — ngl, do not change the commas, she's got a specific vibe:

       ssize_t mei_read (struct file *file , char __user *ubuf , size_t length
       , loff_t *offset );

🎀 ARGUMENTS 🎀

okay so the parameters are giving main-character energy:

• file — pointer to file structure
• ubuf — pointer to user buffer
• length — buffer length
• offset — data offset in buffer

💖 RETURN 💖

return-value tea: >=0 data length on success, and <0 on error. that's the whole mood, fr fr. 😌

🌈 SEE ALSO 🌈

if you're doing the lore deep dive, these are all the references, and yes, every single one is invited to the group chat, iykyk:

• Kernel file ./drivers/misc/mei/main.c
• the whole squad: mei_open(9), mei_cl_vtag_remove_by_fp(9), mei_release(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_fsync(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)

made with 💖 from source ./drivers/misc/mei, dated October 2026, and this page is mei_read(9) — bye bestie! 🫶🌷