ad7877.h

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/* linux/spi/ad7877.h */

/* Touchscreen characteristics vary between boards and models.  The
 * platform_data for the device's "struct device" holds this information.
 *
 * It's OK if the min/max values are zero.
 */
struct ad7877_platform_data {
    u16 model;          /* 7877 */
    u16 vref_delay_usecs;   /* 0 for external vref; etc */
    u16 x_plate_ohms;
    u16 y_plate_ohms;

    u16 x_min, x_max;
    u16 y_min, y_max;
    u16 pressure_min, pressure_max;

    u8  stopacq_polarity;   /* 1 = Active HIGH, 0 = Active LOW */
    u8  first_conversion_delay; /* 0 = 0.5us, 1 = 128us, 2 = 1ms, 3 = 8ms */
    u8  acquisition_time;   /* 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */
    u8  averaging;      /* 0 = 1, 1 = 4, 2 = 8, 3 = 16 */
    u8  pen_down_acc_interval;  /* 0 = covert once, 1 = every 0.5 ms,
                       2 = ever 1 ms,   3 = every 8 ms,*/
};