snd_hdac_bus_send_cmd_pio(9)

💖 NAME 💖

Bestie, meet snd_hdac_bus_send_cmd_pio(9) from the Kernel API Manual — the function that sends a command verb via Immediate Command. That’s the whole name-and-purpose combo, and honestly? Iconic. ✨

✨ SYNOPSIS ✨

int snd_hdac_bus_send_cmd_pio (struct hdac_bus *bus , unsigned int val
       );

🎀 ARGUMENTS 🎀

• bus — the HD-audio core bus 🎧
• val — the encoded verb value to send ✨

🌸 DESCRIPTION 🌸

Okay so the vibe is short and sweet: this one sends a command verb via Immediate Command. And the return tea? Returns zero for success or a negative error code. That’s the whole plot — no extra twists, no cap. 💅

🦋 SEE ALSO 🦋

Kernel file: ./sound/hda/core/controller.c — go peek if you’re feeling nosy, bestie. 👀

• snd_hdac_bus_init_cmd_io(9)
• snd_hdac_bus_stop_cmd_io(9)
• snd_hdac_bus_get_response_pio(9)
• snd_hdac_bus_send_cmd_corb(9)
• snd_hdac_bus_update_rirb(9)
• snd_hdac_bus_get_response_rirb(9)
• snd_hdac_bus_send_cmd(9)
• snd_hdac_bus_get_response(9)
• snd_hdac_bus_parse_capabilities(9)
• snd_hdac_bus_enter_link_reset(9)
• snd_hdac_bus_exit_link_reset(9)
• snd_hdac_bus_init_chip(9)
• snd_hdac_bus_stop_chip(9)
• snd_hdac_bus_handle_stream_irq(9)
• snd_hdac_bus_alloc_stream_pages(9)
• snd_hdac_bus_free_stream_pages(9)
• snd_hdac_bus_link_power(9)

okay bestie, that’s the whole manual page 💖 the footer vibe is source/version ./sound/hda/core, date October 2026, and manual snd_hdac_bus_send_cmd_pio(9). go send that command verb and slay 🫶✨