Edit File: ad7877.h
/* 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,*/ };