write_ipc_from_queue(9)

okay so bestie, we’re looking at write_ipc_from_queue(9) from the Kernel API Manual, and it’s lowkey a tiny helper with big “I got this” energy 💅✨

🎀 NAME 🎀

write_ipc_from_queue — try to write ipc msg from Tx queue to device 🫶

🦋 SYNOPSIS 🦋

the whole signature is right here, no cap:

int write_ipc_from_queue (struct ishtp_device *dev );

✨ ARGUMENTS ✨

• dev — the ishtp device pointer, periodt 🫶

💅 DESCRIPTION 💅

First things first: it checks if DRBL is cleared. If it is — write the first IPC msg, then call the callback function (unless it’s NULL) 🙈. That’s the whole vibe.

💖 RETURN 💖

It returns 0 for success, else a failure code 💀. Simple as that, bestie.

🎀 SEE ALSO 🎀

Kernel file ./drivers/hid/intel-ish-hid/ipc/ipc.c — plus the whole friend group: 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_to_queue(9), ipc_send_mng_msg(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) ✨

mwah 💋 this page comes from ./drivers/hid/intel-ish-hid/ipc, dated October 2026, and it’s all about write_ipc_from_queue(9) — bye bestie, go write that ipc msg 🎀🌈