snd_hdac_check_power_state(9)

✨ snd_hdac_check_power_state ✨

okay bestie, so this is the manual page for snd_hdac_check_power_state — it lives in the Kernel API Manual and honestly it's a little vibe check for your HDAC device's power state 💅

🌸 NAME 🌸

snd_hdac_check_power_state — check whether the actual power state matches with the target state

🦋 SYNOPSIS 🦋

bool snd_hdac_check_power_state (struct hdac_device *hdac , hda_nid_t
nid , unsigned int target_state );

🎀 ARGUMENTS 🎀

• hdac — the HDAC device 💖
• nid — NID to send the command
• target_state — target state to check for

🔥 DESCRIPTION 🔥

Return true if state matches, false if not ✨ that's it, that's the whole entire function, and honestly? iconic.

👑 SEE ALSO 👑

Kernel file ./sound/hda/core/device.c, plus the whole friend group:

• snd_hdac_device_init(9)
• snd_hdac_device_exit(9)
• snd_hdac_device_register(9)
• snd_hdac_device_unregister(9)
• snd_hdac_device_set_chip_name(9)
• snd_hdac_codec_modalias(9)
• snd_hdac_make_cmd(9)
• snd_hdac_exec_verb(9)
• snd_hdac_read(9)
• _snd_hdac_read_parm(9)
• snd_hdac_read_parm_uncached(9)
• snd_hdac_override_parm(9)
• snd_hdac_get_sub_nodes(9)
• snd_hdac_refresh_widgets(9)
• snd_hdac_get_connections(9)
• snd_hdac_power_up(9)
• snd_hdac_power_down(9)
• snd_hdac_power_up_pm(9)
• snd_hdac_power_down_pm(9)
• snd_hdac_stream_format_bits(9)
• snd_hdac_stream_format(9)
• snd_hdac_spdif_stream_format(9)
• snd_hdac_query_supported_pcm(9)
• snd_hdac_is_supported_format(9)
• snd_hdac_codec_read(9)
• snd_hdac_codec_write(9)
• snd_hdac_sync_power_state(9)

🫶 and that's a wrap! this lil page comes from ./sound/hda/core, dated October 2026, and it's the snd_hdac_check_power_state(9) manual page — go forth and check those power states, bestie, you got this 💜⭐