STRUCT AB8500_GPADC_CHAN_INFO(9)

💅 struct ab8500_gpadc_chan_info(9) 💅

okay bestie, welcome to the Kernel API Manual — yes, that Kernel API Manual, the one and only ✨ this page is literally all about struct ab8500_gpadc_chan_info, the little glow-up sheet that holds the per-channel GPADC info. one struct, six members, zero filler. let's get into it 🫶

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🌸 NAME 🌸

struct ab8500_gpadc_chan_info — per-channel GPADC info. that's it, that's the whole vibe. it's the info card each GPADC channel carries around 💖

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🎀 SYNOPSIS 🎀

struct ab8500_gpadc_chan_info {
    const char *name;
    u8 id;
    bool hardware_control;
    bool falling_edge;
    u8 avg_sample;
    u8 trig_timer;
 };

look at her. six fields, all main character, no notes 👑

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🦋 Members 🦋

• name — name of the channel 💫 literally just the channel's name, bestie, it's giving "hello my name is".
• id — the internal AB8500 ID number for the channel 🔢 that's the ID the AB8500 itself uses for this channel.
• hardware_control — indicate that we want to use hardware ADC control on this channel, the default is software ADC control 🎛️ so like, software ADC control is the default-default, and setting this flag is you saying "nah, hardware please". and heads up — hardware control is normally only used to test the battery voltage during GSM bursts, and it needs a hardware trigger on the GPADCTrig pin of the ASIC. so it's a whole thing, not a casual toggle ⚡
• falling_edge — indicate that we want to trigger on falling edge rather than rising edge, rising edge is the default 📉📈 rising edge is the default, so this flag is your "actually, falling edge pls" moment.
• avg_sample — how many samples to average: must be 1, 4, 8 or 16 🧮 no cap, those are the only valid values — 1, 4, 8 or 16. don't try to be creative here, it will not slay.
• trig_timer — how long to wait for the trigger, in 32kHz periods: 0 .. 255 periods ⏱️ that's the range, 0 through 255, measured in 32kHz periods.

💀 friendly reminder that avg_sample is strictly 1, 4, 8 or 16, and trig_timer lives in 0..255. color outside those lines at your own risk, bestie.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/iio/adc/ab8500-gpadc.c struct
• ab8500_adc_cal_data(9)
• struct ab8500_gpadc(9)
• ab8500_gpadc_ad_to_voltage(9)
• ab8500_bm_gpadcconvend_handler(9)
• ab8500_gpadc_parse_channel(9)
• ab8500_gpadc_parse_channels(9)

go read those too, they're all connected, iykyk 🔥

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and that's the page!! 🎀 this one came from ./drivers/iio/adc, dated October 2026, and it's filed under struct ab85...dc_chan_info(9). mwah, go forth and average your samples responsibly 💖✨💅