cs_amp_create_debugfs(9)

💅 cs_amp_create_debugfs — the cs_amp girlies' kernel API manual, bestie edition

okay so real talk, the function we're talking about is cs_amp_create_debugfs and it lives in the 9 section of the Kernel API Manual (that's the kernel-flavoured one, iykyk) ✨

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🌸 NAME 🌸

cs_amp_create_debugfs — creates a debugfs directory for a device, no cap 💖

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🎀 SYNOPSIS 🎀

struct dentry * cs_amp_create_debugfs (struct device *dev );

like, that's the whole signature, she's cute, she's concise 🦋

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✨ ARGUMENTS ✨

• dev — pointer to struct device 🫶 literally just a pointer to the device struct, that's it, that's the whole argument.

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💜 DESCRIPTION 💜

okay so what she does is: she creates a node under "cirrus_logic" in the root of the debugfs filesystem 👑

and why, you ask? because this is for Cirrus-specific debugfs functionality, and the whole point is for it to be grouped in a defined way — independently of the debugfs provided by ALSA/ASoC 💅 the way that the general ALSA/ASoC debugfs may not even be enabled (😭) and does not necessarily have a stable layout or naming convention. so yeah, she's doing her own thing, main character energy, and honestly? iconic.

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🔥 RETURN 🔥

she returns a pointer to the dentry for the created directory 💖 … or -ENODEV 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/codecs/cs-amp-lib.c (go read her!!)
• cs_amp_write_cal_coeffs(9)
• cs_amp_read_cal_coeffs(9)
• cs_amp_write_ambient_temp(9)
• cs_amp_get_efi_calibration_data(9)
• cs_amp_set_efi_calibration_data(9)
• cs_amp_get_vendor_spkid(9)
• cs_amp_devm_get_vendor_specific_variant_id(9)

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and that's the tea 🍓 this page came from ./sound/soc/codecs and it's dated October 2026 — so yeah, future vibes only, periodt 💀✨ 🧚‍♀️