mei_ioctl(9)

🌸 NAME 🌸

okay so this is mei_ioctl(9) from the Kernel API Manual — manual name folded in right here at the top like a lil name tag 🎀 — and it is, literally, the IOCTL function. periodt. 💅

✨ SYNOPSIS ✨

bestie, here is the exact shape, no cap:

long mei_ioctl (struct file *file , unsigned int cmd , unsigned long data );

🎀 ARGUMENTS 🎀

• file — pointer to file structure. yes, that kind of pointer. 🫶
• cmd — ioctl command. the command-y bit. ✨
• data — pointer to mei message structure. it’s giving “here’s the message struct pointer” energy. 💌

🔥 RETURN 🔥

0 on success, <0 on error. that’s the whole vibe check: zero means slay, negative means uh-oh 😭💀

🌈 SEE ALSO 🌈

• 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_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)

mwah 💋 this page lives in ./drivers/misc/mei, it’s dated October 2026, and it comes from the Kernel API Manual — that’s the source/version + date tea, bye bestie! 🎀🫶🦋