mei_cl_notify_request(9)

💅 mei_cl_notify_request(9) 💅

okay so we're in the Kernel API Manual today bestie, and we're talking about mei_cl_notify_request — the little function that sends a notification stop/start request. yes it's a kernel function. yes it's iconic. let's get into it ✨

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🌸 SYNOPSIS 🌸

int mei_cl_notify_request (struct mei_cl *cl , const struct file *fp ,
u8 request );

that's it. that's the whole vibe check. three args, one int coming back at you 🫶

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🎀 ARGUMENTS 🎀

• cl — the host client. the main character of this whole operation fr 💖
• fp — the file you're associating the request with. it just wants to be included 🥺
• request — 1 for start, or 0 for stop. that's it. binary queen behavior 💅

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✨ DESCRIPTION ✨

hiii so quick heads up about locking: this one is called under the "dev->device_lock" lock. no cap, that's literally the entire description. short and mysterious, we love a lowkey legend 🦋

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🔥 RETURN 🔥

returns 0 on such and error otherwise — yes that's exactly what the original says, we don't editorialize on the wording, we just report it with love 💀

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👑 SEE ALSO 👑

the whole squad, no gatekeeping. these are all (9) sections and they all hang out in the kernel file ./drivers/misc/mei/client.c:

• mei_me_cl_init(9)
• mei_me_cl_get(9)
• mei_me_cl_release(9)
• mei_me_cl_put(9)
• __mei_me_cl_del(9)
• mei_me_cl_del(9)
• mei_me_cl_add(9)
• __mei_me_cl_by_uuid(9)
• mei_me_cl_by_uuid(9)
• mei_me_cl_by_id(9)
• __mei_me_cl_by_uuid_id(9)
• mei_me_cl_by_uuid_id(9)
• mei_me_cl_rm_by_uuid(9)
• mei_me_cl_rm_all(9)
• mei_io_cb_free(9)
• mei_tx_cb_enqueue(9)
• mei_tx_cb_dequeue(9)
• mei_cl_set_read_by_fp(9)
• mei_io_cb_init(9)
• mei_io_list_flush_cl(9)
• mei_io_tx_list_free_cl(9)
• mei_io_rd_list_free_fp(9)
• mei_cl_free_pending(9)
• mei_cl_alloc_cb(9)
• mei_cl_enqueue_ctrl_wr_cb(9)
• mei_cl_read_cb(9)
• mei_cl_flush_queues(9)
• mei_cl_init(9)
• mei_cl_allocate(9)
• mei_cl_link(9)
• mei_cl_unlink(9)
• mei_hbuf_acquire(9)
• mei_cl_wake_all(9)
• mei_cl_set_disconnected(9)
• mei_cl_irq_disconnect(9)
• __mei_cl_disconnect(9)
• mei_cl_disconnect(9)
• mei_cl_is_other_connecting(9)
• mei_cl_send_connect(9)
• mei_cl_irq_connect(9)
• mei_cl_connect(9)
• mei_cl_alloc_linked(9)
• mei_cl_tx_flow_ctrl_creds(9)
• mei_cl_tx_flow_ctrl_creds_reduce(9)
• mei_cl_vtag_alloc(9)
• mei_cl_fp_by_vtag(9)
• mei_cl_reset_read_by_vtag(9)
• mei_cl_read_vtag_add_fc(9)
• mei_cl_vt_support_check(9)
• mei_cl_add_rd_completed(9)
• mei_cl_del_rd_completed(9)
• mei_cl_notify_fop2req(9)
• mei_cl_notify_req2fop(9)
• mei_cl_irq_notify(9)
• mei_cl_notify(9)
• mei_cl_notify_get(9)
• mei_cl_read_start(9)
• mei_msg_hdr_init(9)
• mei_cl_irq_write(9)
• mei_cl_write(9)
• mei_cl_complete(9)
• mei_cl_all_disconnect(9)
• mei_cl_irq_dma_map(9)
• mei_cl_irq_dma_unmap(9)
• mei_cl_dma_alloc_and_map(9)
• mei_cl_dma_unmap(9)

like, that's the whole extended friend group 😭 every single one of them, we do not leave a single (9) behind 🫶

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and that's the page!! 🎀 this lil beauty lives under ./drivers/misc/mei, dated October 2026, and it's mei_cl_notify_request(9) in the Kernel API Manual. mwah, go read the source bestie, it's giving main character energy 🌈⭐💜