26 lines
724 B
C
26 lines
724 B
C
/* linux/spi/ads7846.h */
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/* Touchscreen characteristics vary between boards and models. The
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* platform_data for the device's "struct device" holds this information.
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*
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* It's OK if the min/max values are zero.
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*/
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struct ads7846_platform_data {
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u16 model; /* 7843, 7845, 7846. */
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u16 vref_delay_usecs; /* 0 for external vref; etc */
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u16 x_plate_ohms;
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u16 y_plate_ohms;
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u16 x_min, x_max;
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u16 y_min, y_max;
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u16 pressure_min, pressure_max;
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u16 debounce_max; /* max number of additional readings
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* per sample */
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u16 debounce_tol; /* tolerance used for filtering */
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u16 debounce_rep; /* additional consecutive good readings
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* required after the first two */
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int (*get_pendown_state)(void);
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};
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