STRUCT MATRIX_KEYPAD(9) Input Subsystem STRUCT MATRIX_KEYPAD(9)NAMEstruct_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.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 STRUCT MATRIX_KEYPAD(9)
