struct ads7846_platform_data {
u16 model; /* 7843, 7845, 7846. */
u16 vref_delay_usecs; /* 0 for external vref; etc */
- int keep_vref_on:1; /* set to keep vref on for differential
+ u16 vref_mv; /* external vref value, milliVolts */
+ bool keep_vref_on; /* set to keep vref on for differential
* measurements as well */
/* Settling time of the analog signals; a function of Vcc and the
u16 debounce_tol; /* tolerance used for filtering */
u16 debounce_rep; /* additional consecutive good readings
* required after the first two */
+ int gpio_pendown; /* the GPIO used to decide the pendown
+ * state if get_pendown_state == NULL
+ */
int (*get_pendown_state)(void);
int (*filter_init) (struct ads7846_platform_data *pdata,
void **filter_data);