STRUCT TWL6030_GPADC_PLATFORM_DATA(9)

💖 struct twl6030_gpadc_platform_data(9) 💖

okay so bestie, we're in the Kernel API Manual rn and this page is literally all about one struct — struct twl6030_gpadc_platform_data — and tbh it's giving "the setup sheet for your GPADC". it's the platform-specific data, the little bundle you hand over so the driver knows what it's working with. no cap, it's small but it's important 🫶

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✨ NAME ✨

struct twl6030_gpadc_platform_data — platform specific data 🌸

like, that's the whole vibe. platform-specific data. it carries the stuff that changes depending on which board/platform you're on, so the driver doesn't have to guess. iconic behavior honestly 💅

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🎀 SYNOPSIS 🎀

struct twl6030_gpadc_platform_data {
    const int nchannels;
    const struct iio_chan_spec *iio_channels;
    const struct twl6030_ideal_code *ideal;
    int (*start_conversion)(int channel);
    u8 (*channel_to_reg)(int channel);
    int (*calibrate)(struct twl6030_gpadc_data *gpadc);
};

look at her. six members, all const-y and pointer-y, and three of them are function pointers so you know she's got main character energy 🔥

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👑 Members 👑

okay so let's go through the whole cast, one by one, no skips ✨

• nchannels — the number of GPADC channels. it's a const int, so it is what it is, periodt 💀
• iio_channels — the iio channels. yep, that's literally it, it's the iio channels bestie 🦋 (it's a const struct iio_chan_spec *, iykyk)
• ideal — pointer to the calibration parameters 💜 this is where the "what should the numbers be" lives
• start_conversion — pointer to the ADC start conversion function. you give it an int channel and it kicks off a conversion, slay ⭐
• channel_to_reg — pointer to the ADC function that converts a channel into a register address, so you can read the conversion result. returns a u8, very demure, very mindful 🎀
• calibrate — pointer to the calibration function. it takes a struct twl6030_gpadc_data *gpadc — the actual gpadc data — and does the calibrating thing 🌈

fr fr, three of these are function pointers, which means this struct is half configuration, half "here's the callbacks you should use". don't sleep on it 🙈

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🌸 SEE ALSO 🌸

• Kernel file ./drivers/iio/adc/twl6030-gpadc.c
• struct twl6030_chnl_calib(9)
• struct twl6030_ideal_code(9)
• struct twl6030_gpadc_data(9)

go read those next, bestie, they're the rest of the lore 📚✨

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and that's the page!! 🧚 full credit to the kernel folks — this one lives in ./drivers/iio/adc, dated October 2026, and it's a whole struct twl60...latform_data(9) moment. mwah, bye pookie 💋💖