struct_matrix_keypad_platform_data (9)

struct matrix_keypad_platform_data {
  const struct matrix_keymap_data * keymap_data;
  const unsigned int * row_gpios;
  const unsigned int * col_gpios;
  unsigned int num_row_gpios;
  unsigned int num_col_gpios;
  unsigned int col_scan_delay_us;
  unsigned int debounce_ms;
  unsigned int clustered_irq;
  unsigned int clustered_irq_flags;
  bool active_low;
  bool wakeup;
  bool no_autorepeat;
};

keymap_data

pointer to matrix_keymap_data

row_gpios

pointer to array of gpio numbers representing rows

col_gpios

pointer to array of gpio numbers reporesenting colums

num_row_gpios

actual number of row gpios used by device

num_col_gpios

actual number of col gpios used by device

col_scan_delay_us

delay, measured in microseconds, that is needed before we can keypad after activating column gpio

debounce_ms

debounce interval in milliseconds

clustered_irq

may be specified if interrupts of all row/column GPIOs are bundled to one single irq

clustered_irq_flags

flags that are needed for the clustered irq

active_low

gpio polarity

wakeup

controls whether the device should be set up as wakeup source

no_autorepeat

disable key autorepeat

This structure represents platform-specific data that use used by matrix_keypad driver to perform proper initialization.