mei_cl_write(9)

okay bestie, welcome to mei_cl_write(9) from the Kernel API Manual — section 9, genuinely iconic behavior only 💅✨

🌸 NAME 🌸

mei_cl_write — submit a write cb to mei device; assumes device_lock is locked. that's the whole assignment, no cap 🫶

🦋 SYNOPSIS 🦋

ssize_t mei_cl_write (struct mei_cl *cl , struct mei_cl_cb *cb ,
       unsigned long timeout );

🎀 ARGUMENTS 🎀

• cl — the host client. main character energy 🎀
• cb — the write callback with filled data, aka the cb is ready to go 💌
• timeout — send timeout in milliseconds. it's effective only for blocking writes: the cb->blocking is set. set timeout to the MAX_SCHEDULE_TIMEOUT for the maixum allowed wait (yes, that's literally how it's spelled on the page 😭).

🔥 RETURN 🔥

number of bytes sent on success, <0 on failure. that's it, that's the vibe check 🔥

🌈 SEE ALSO 🌈

Kernel file ./drivers/misc/mei/client.c — and the whole friend group is here, in order, no cap:

• 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_request(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_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)

this page's source/version is ./drivers/misc/mei, dated October 2026, and the star is mei_cl_write(9) — bye bestie, stay iconic 💖🦋🎀