STRUCT GRTS_STATE(9)

🦋 struct grts_state(9) 🦋

okay bestie, so this is from the Kernel API Manual and it's literally the page for struct grts_state — the generic resistive touch screen information struct. yes, that's the whole vibe: it's the little info bundle that holds everything the resistive touchscreen driver needs to know about itself. icon behavior honestly. ✨

🌸 NAME 🌸

struct grts_state — the generic resistive touch screen information struct 💅

✨ SYNOPSIS ✨

struct grts_state {
    u32 x_plate_ohms;
    u32 pressure_min;
    bool pressure;
    struct iio_channel              *iio_chans;
    struct iio_cb_buffer            *iio_cb;
    struct input_dev                *input;
    struct touchscreen_properties   prop;
    u8 ch_map[GRTS_CH_MAX];
 };

🎀 Members 🎀

okay so every single field, no skipping, let's go 🫶

• x_plate_ohms — the resistance of the X plate, fr fr. that's the number, that's what it is.
• pressure_min — a number representing the minimum for the pressure. lowkey the floor value for pressure readings.
• pressure — a bool that answers the question: are we getting pressure info or not? 👀 that's it, that's the whole field.
• iio_chans — the list of channels acquired. points at a struct iio_channel. slay.
• iio_cb — the iio_callback buffer for the data. a struct iio_cb_buffer *, holding onto the callback buffer vibes.
• input — the input device structure that we register. struct input_dev *, main character energy for real.
• prop — the touchscreen properties struct, aka a struct touchscreen_properties. it's giving supporting cast but essential.
• ch_map — map of channels that are defined for the touchscreen. it's a u8 array sized GRTS_CH_MAX. periodt.

🔥 SEE ALSO 🔥

• Kernel file ./drivers/input/touchscreen/resistive-adc-touch.c — go read the source bestie, that's where the lore lives 📖

okay that's the whole page, no cap, every member accounted for 💖 and for the cute sign-off: this one lives under ./drivers/input/touchscreen and it's dated October 2026 — so mark your calendars, the touchscreen lore is timestamped 🎀✨ no notes, 10/10, bye 🦋