recv_ipc(9)

🦋 recv_ipc(9) — Kernel API Manual 🦋

okay so bestie, welcome to recv_ipc(9) from the Kernel API Manual. this is the whole vibe: receive and process IPC management messages. no cap, that’s the gig. 💅

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🌸 NAME 🌸

recv_ipc — receive and process IPC management messages, bestie. literally the whole point. ✨

🎀 SYNOPSIS 🎀

void     recv_ipc (struct ishtp_device *dev , uint32_t doorbell_val );

💖 ARGUMENTS 💖

• dev — the ishtp device instance. that’s the device bestie in question. 🫶
• doorbell_val — the doorbell value. yes, that exact value. 🔔

🌈 DESCRIPTION 🌈

okay so this function runs in ISR context. that’s the description. periodt. 💀✨

⚠️ NOTE ⚠️

heads up, bestie — not me letting you miss this:

Any other mng command than reset_notify and reset_notify_ack won't wake BH handler

fr fr, that’s the note. don’t forget it. 🙈

👑 SEE ALSO 👑

kernel file: ./drivers/hid/intel-ish-hid/ipc/ipc.c — and the whole friend group is right here, bestie:

• 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)
• 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)
• 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 💋 — source/version ./drivers/hid/intel-ish-hid/ipc, dated October 2026, page recv_ipc(9). bye bestie 🫶✨