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STRUCT MATRIX_KEYPAD(9) Input Subsystem STRUCT MATRIX_KEYPAD(9)

NAME

struct_matrix_keypad_platform_data - platform-dependent keypad data

SYNOPSIS

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;
};

MEMBERS

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

DESCRIPTION

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

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.