STRUCT CS_DSP_COEFF_CTL(9)

💅 struct cs_dsp_coeff_ctl(9) 💅

okay so welcome to the Kernel API Manual, bestie 💖. This page is all about struct cs_dsp_coeff_ctl, and the NAME section literally says it describes a coefficient control. not me being obsessed with kernel structs, but here we are 🎀.

✨ NAME ✨

struct cs_dsp_coeff_ctl — describes a coefficient control. periodt 💅

🦋 SYNOPSIS 🦋

       struct cs_dsp_coeff_ctl {
           struct list_head list;
           struct cs_dsp *dsp;
           void *cache;
           const char *fw_name;
           const char *subname;
           unsigned int subname_len;
           unsigned int offset;
           unsigned int len;
           unsigned int type;
           unsigned int flags;
           unsigned int set:1;
           unsigned int enabled:1;
           struct cs_dsp_alg_region alg_region;
           void *priv;
        };

🎀 Members 🎀

• list — list node for internal use. internal-use vibes only, bestie 🫶
• dsp — DSP instance associated with this control. main character DSP energy, fr fr.
• cache — cached value of the control. it's giving "remembered for later" ✨
• fw_name — name of the firmware.
• subname — name of the control parsed from the WMFW.
• subname_len — length of subname.
• offset — offset of control within alg_region in words.
• len — length of the cached value in bytes.
• type — one of the WMFW_CTL_TYPE_ control types defined in wmfw.h.
• flags — bitfield of WMFW_CTL_FLAG_ control flags defined in wmfw.h.
• set — flag indicating the value has been written by the user. user said yes, noted 💅
• enabled — flag indicating whether control is enabled.
• alg_region — logical region associated with this control.
• priv — for use by the client.

🌈 SEE ALSO 🌈

Kernel file ./include/linux/firmware/cirrus/cs_dsp.h — plus the whole squad: struct cs_dsp_region(9), struct cs_dsp_alg_region(9), struct cs_dsp(9), struct cs_dsp_client_ops(9), struct cs_dsp_wseq(9), struct cs_dsp_chunk(9), cs_dsp_chunk(9), cs_dsp_chunk_end(9), cs_dsp_chunk_bytes(9), cs_dsp_chunk_valid_addr(9). all iconic, all linked 💖

source/version + date tea: ./include/linux/firmware/cirrus 🌸 · October 2026 🎀 · page: struct cs_dsp_coeff_ctl(9) — bye bestie, go read them kernel headers 💜