1STRUCT MATRIX_KEYPAD(9)         Input Subsystem        STRUCT MATRIX_KEYPAD(9)
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NAME

6       struct_matrix_keypad_platform_data - platform-dependent keypad data
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SYNOPSIS

9       struct matrix_keypad_platform_data {
10         const struct matrix_keymap_data * keymap_data;
11         const unsigned int * row_gpios;
12         const unsigned int * col_gpios;
13         unsigned int num_row_gpios;
14         unsigned int num_col_gpios;
15         unsigned int col_scan_delay_us;
16         unsigned int debounce_ms;
17         unsigned int clustered_irq;
18         unsigned int clustered_irq_flags;
19         bool active_low;
20         bool wakeup;
21         bool no_autorepeat;
22       };
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MEMBERS

25       keymap_data
26           pointer to matrix_keymap_data
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28       row_gpios
29           pointer to array of gpio numbers representing rows
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31       col_gpios
32           pointer to array of gpio numbers reporesenting colums
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34       num_row_gpios
35           actual number of row gpios used by device
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37       num_col_gpios
38           actual number of col gpios used by device
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40       col_scan_delay_us
41           delay, measured in microseconds, that is needed before we can
42           keypad after activating column gpio
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44       debounce_ms
45           debounce interval in milliseconds
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47       clustered_irq
48           may be specified if interrupts of all row/column GPIOs are bundled
49           to one single irq
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51       clustered_irq_flags
52           flags that are needed for the clustered irq
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54       active_low
55           gpio polarity
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57       wakeup
58           controls whether the device should be set up as wakeup source
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60       no_autorepeat
61           disable key autorepeat
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DESCRIPTION

64       This structure represents platform-specific data that use used by
65       matrix_keypad driver to perform proper initialization.
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68Kernel Hackers Manual 3.10         June 2019           STRUCT MATRIX_KEYPAD(9)
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