ipc_send_mng_msg(9)

💅 ipc_send_mng_msg(9) 💅

okay so welcome to the Kernel API Manual, bestie — today’s main character is ipc_send_mng_msg(9), and we’re gonna get you all the way together. ✨

🌸 NAME 🌸

ipc_send_mng_msg — Send management message

✨ SYNOPSIS ✨

the signature, copied exactly because every comma and space is canon:

int ipc_send_mng_msg (struct ishtp_device *dev , uint32_t msg_code ,
       void *msg , size_t size );

🎀 ARGUMENTS 🎀

• dev — the ishtp device instance, aka the device we’re doing this on.
• msg_code — the message code.
• msg — a pointer to the message.
• size — the length of the message.

💖 DESCRIPTION 💖

This one sends a management message to FW. That’s the whole assignment, no cap. 💅

🔥 RETURN 🔥

0 for success, bestie — anything else is a failure code. 🫶

🌈 SEE ALSO 🌈

The kernel file is ./drivers/hid/intel-ish-hid/ipc/ipc.c, and the whole referenced squad is:

• ish_reg_read(9)
• ish_reg_write(9)
• _ish_read_fw_sts_reg(9)
• check_generated_interrupt(9)
• ish_is_input_ready(9)
• set_host_ready(9)
• ishtp_fw_is_ready(9)
• ish_set_host_rdy(9)
• ish_clr_host_rdy(9)
• ish_set_host_ready(9)
• _ishtp_read_hdr(9)
• _ishtp_read(9)
• write_ipc_from_queue(9)
• write_ipc_to_queue(9)
• timed_wait_for_timeout(9)
• ish_fw_reset_handler(9)
• fw_reset_work_fn(9)
• _ish_sync_fw_clock(9)
• recv_ipc(9)
• ish_irq_handler(9)
• ish_disable_dma(9)
• ish_wakeup(9)
• _ish_hw_reset(9)
• _ish_ipc_reset(9)
• ish_hw_start(9)
• ish_ipc_get_header(9)
• _dma_no_cache_snooping(9)
• ish_dev_init(9)
• ish_device_disable(9)

cute sign-off: source/version ./drivers/hid/intel-ish-hid/ipc, date October 2026, title ipc_send_mng_msg(9) — bye bestie! 💖