STRUCT SCA3000_CHIP_INFO(9)

🎀 struct sca3000_chip_info(9) 🎀

okay so bestie, this page is from the Kernel API Manual, and it's literally the whole lore on struct sca3000_chip_info — the model dependent parameters struct. No cap, it's giving “one struct to describe what a given sca3000 variant can do.” 💅

🌸 NAME 🌸

struct sca3000_chip_info — model dependent parameters. That's the name, that's the game, periodt. ✨

✨ SYNOPSIS ✨

struct sca3000_chip_info {
    const char              *name;
    unsigned int            scale;
    bool temp_output;
    int measurement_mode_freq;
    int measurement_mode_3db_freq;
    int option_mode_1;
    int option_mode_1_freq;
    int option_mode_1_3db_freq;
    int option_mode_2;
    int option_mode_2_freq;
    int option_mode_2_3db_freq;
    int mot_det_mult_xz[6];
    int mot_det_mult_y[7];
};

💅 Members 💅

• name — the name of the chip, literally. identity check, slay.
• scale — scale * 10^-6. Math girlie moment: it's the scale times ten to the minus six. 🧮
• temp_output — some devices have temperature sensors. so this is the temp-output situation.
• measurement_mode_freq — normal mode sampling frequency. the main-character sampling rate.
• measurement_mode_3db_freq — 3db cutoff frequency of the low pass filter for the normal measurement mode. filter deets, but make it normal mode.
• option_mode_1 — first optional mode. Not all models have one. optional means optional, bestie.
• option_mode_1_freq — option mode 1 sampling frequency. mode 1's sampling rate.
• option_mode_1_3db_freq — 3db cutoff frequency of the low pass filter for the first option mode. low pass filter vibes for option mode 1.
• option_mode_2 — second optional mode. Not all chips have one. some chips said “two modes or bust,” some did not.
• option_mode_2_freq — option mode 2 sampling frequency. mode 2's sampling rate.
• option_mode_2_3db_freq — 3db cutoff frequency of the low pass filter for the second option mode. same filter energy, option mode 2 edition.
• mot_det_mult_xz — bit wise multipliers to calculate the threshold for motion detection in the x and z axis. motion-detection math for x and z, iconic.
• mot_det_mult_y — bit wise multipliers to calculate the threshold for motion detection in the y axis. and the y-axis multiplier, because y deserves its moment too.

🦋 Description 🦋

okay so this structure is used to hold information about the functionality of a given sca3000 variant. Like, it's the struct where all the model-dependent functionality info lives. the whole point, the whole vibe. 🫶

🔥 SEE ALSO 🔥

the whole squad of related kernel refs — don't skip these, bestie:

• Kernel file ./drivers/iio/accel/sca3000.c
• struct sca3000_state(9)
• sca3000_reg_lock_on(9)
• __sca3000_unlock_reg_lock(9)
• sca3000_write_ctrl_reg(9)
• sca3000_read_ctrl_reg(9)
• sca3000_print_rev(9)
• __sca3000_get_base_freq(9)
• sca3000_read_raw_samp_freq(9)
• sca3000_write_raw_samp_freq(9)
• sca3000_read_av_freq(9)
• sca3000_write_event_value(9)
• sca3000_ring_int_process(9)
• sca3000_event_handler(9)
• sca3000_write_event_config(9)
• sca3000_hw_ring_preenable(9)
• sca3000_clean_setup(9)

xoxo, bestie 💖 — source/version: ./drivers/iio/accel, date: October 2026, page: struct sca3000_chip_info(9). 🎀