STRUCT I3C_CCC_DEV_DESC(9)

✨ struct i3c_ccc_dev_desc(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one's all about struct i3c_ccc_dev_desc, and it's literally the glow-up blueprint for I3C/I2C device descriptors used for DEFSLVS. 💅

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🎀 NAME 🎀

struct i3c_ccc_dev_desc — the I3C/I2C device descriptor that gets used for DEFSLVS. no cap, that's the whole vibe.

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🦋 SYNOPSIS 🦋

struct i3c_ccc_dev_desc {
    u8 dyn_addr;
    union {
      u8 dcr;
      u8 lvr;
    };
    u8 bcr;
    u8 static_addr;
 };

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💖 Members 💖

here's the cast, main character energy only:

• dyn_addr — the dynamic address that got assigned to the I3C slave. and if this entry is describing an I2C slave? it's just 0. zero. nothing. bye. 👋
• {unnamed_union} — the anonymous union. she has no name but she's still iconic. 🫶
• dcr — the DCR value. quick note: this one is not applicable to entries that describe I2C devices. so don't come for her when she's not invited. 🙈
• lvr — the LVR value. and same deal flipped: not applicable to entries describing I3C devices. iykyk. ✨
• bcr — the BCR value, or 0 if this entry is describing an I2C slave. take notes bestie 📝
• static_addr — the static address, or 0 if the device flat-out doesn't have a static address. simple as that 💀

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🌸 Description 🌸

so the DEFSLVS command is supposed to be passed an array of i3c_ccc_dev_desc descriptors — literally one entry per I3C/I2C dev that the master controls. that's it. that's the assignment. slay. 👑

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🔥 SEE ALSO 🔥

go read these next, bestie, they're all in Kernel file ./include/linux/i3c/ccc.h:

• struct i3c_ccc_events(9)
• struct i3c_ccc_mwl(9)
• struct i3c_ccc_mrl(9)
• struct i3c_ccc_defslvs(9)
• enum i3c_ccc_test_mode(9)
• struct i3c_ccc_enttm(9)
• struct i3c_ccc_setda(9)
• struct i3c_ccc_getpid(9)
• struct i3c_ccc_getbcr(9)
• struct i3c_ccc_getdcr(9)
• struct i3c_ccc_getstatus(9)
• struct i3c_ccc_getaccmst(9)
• struct i3c_ccc_bridged_slave_desc(9)
• struct i3c_ccc_setbrgtgt(9)
• enum i3c_sdr_max_data_rate(9)
• enum i3c_tsco(9)
• struct i3c_ccc_getmxds(9)
• struct i3c_ccc_gethdrcap(9)
• enum i3c_ccc_setxtime_subcmd(9)
• struct i3c_ccc_setxtime(9)
• struct i3c_ccc_getxtime(9)
• struct i3c_ccc_cmd_payload(9)
• struct i3c_ccc_cmd_dest(9)
• struct i3c_ccc_cmd(9)

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and that's the whole page, bestie!! 🎀✨ huge shoutout to the source ./include/linux/i3c, dated October 2026 — literally carrying this entire doc on her back 💜🦋 mwah, see u in the next manpage 🫶