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147 lines
4.9 KiB
Markdown
147 lines
4.9 KiB
Markdown
# Programmable Button {#programmable-button}
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Programmable Buttons are keys that have no predefined meaning. This means they can be processed on the host side by custom software without the operating system trying to interpret them.
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The keycodes are emitted according to the HID Telephony Device page (`0x0B`), Programmable Button usage (`0x09`). On Linux (> 5.14) they are handled automatically and translated to `KEY_MACRO#` keycodes (up to `KEY_MACRO30`).
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::: tip
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Currently there is no known support in Windows or macOS. It may be possible to write a custom HID driver to receive these usages, but this is out of the scope of the QMK documentation.
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:::
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## Usage {#usage}
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Add the following to your `rules.mk`:
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```make
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PROGRAMMABLE_BUTTON_ENABLE = yes
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```
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## Keycodes {#keycodes}
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|Key |Aliases|Description |
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|---------------------------|-------|----------------------|
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|`QK_PROGRAMMABLE_BUTTON_1` |`PB_1` |Programmable button 1 |
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|`QK_PROGRAMMABLE_BUTTON_2` |`PB_2` |Programmable button 2 |
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|`QK_PROGRAMMABLE_BUTTON_3` |`PB_3` |Programmable button 3 |
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|`QK_PROGRAMMABLE_BUTTON_4` |`PB_4` |Programmable button 4 |
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|`QK_PROGRAMMABLE_BUTTON_5` |`PB_5` |Programmable button 5 |
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|`QK_PROGRAMMABLE_BUTTON_6` |`PB_6` |Programmable button 6 |
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|`QK_PROGRAMMABLE_BUTTON_7` |`PB_7` |Programmable button 7 |
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|`QK_PROGRAMMABLE_BUTTON_8` |`PB_8` |Programmable button 8 |
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|`QK_PROGRAMMABLE_BUTTON_9` |`PB_9` |Programmable button 9 |
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|`QK_PROGRAMMABLE_BUTTON_10`|`PB_10`|Programmable button 10|
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|`QK_PROGRAMMABLE_BUTTON_11`|`PB_11`|Programmable button 11|
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|`QK_PROGRAMMABLE_BUTTON_12`|`PB_12`|Programmable button 12|
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|`QK_PROGRAMMABLE_BUTTON_13`|`PB_13`|Programmable button 13|
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|`QK_PROGRAMMABLE_BUTTON_14`|`PB_14`|Programmable button 14|
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|`QK_PROGRAMMABLE_BUTTON_15`|`PB_15`|Programmable button 15|
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|`QK_PROGRAMMABLE_BUTTON_16`|`PB_16`|Programmable button 16|
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|`QK_PROGRAMMABLE_BUTTON_17`|`PB_17`|Programmable button 17|
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|`QK_PROGRAMMABLE_BUTTON_18`|`PB_18`|Programmable button 18|
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|`QK_PROGRAMMABLE_BUTTON_19`|`PB_19`|Programmable button 19|
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|`QK_PROGRAMMABLE_BUTTON_20`|`PB_20`|Programmable button 20|
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|`QK_PROGRAMMABLE_BUTTON_21`|`PB_21`|Programmable button 21|
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|`QK_PROGRAMMABLE_BUTTON_22`|`PB_22`|Programmable button 22|
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|`QK_PROGRAMMABLE_BUTTON_23`|`PB_23`|Programmable button 23|
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|`QK_PROGRAMMABLE_BUTTON_24`|`PB_24`|Programmable button 24|
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|`QK_PROGRAMMABLE_BUTTON_25`|`PB_25`|Programmable button 25|
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|`QK_PROGRAMMABLE_BUTTON_26`|`PB_26`|Programmable button 26|
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|`QK_PROGRAMMABLE_BUTTON_27`|`PB_27`|Programmable button 27|
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|`QK_PROGRAMMABLE_BUTTON_28`|`PB_28`|Programmable button 28|
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|`QK_PROGRAMMABLE_BUTTON_29`|`PB_29`|Programmable button 29|
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|`QK_PROGRAMMABLE_BUTTON_30`|`PB_30`|Programmable button 30|
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|`QK_PROGRAMMABLE_BUTTON_31`|`PB_31`|Programmable button 31|
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|`QK_PROGRAMMABLE_BUTTON_32`|`PB_32`|Programmable button 32|
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## API {#api}
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### `void programmable_button_clear(void)` {#api-programmable-button-clear}
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Clear the programmable button report.
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---
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### `void programmable_button_add(uint8_t index)` {#api-programmable-button-add}
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Set the state of a button.
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#### Arguments {#api-programmable-button-add-arguments}
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- `uint8_t index`
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The index of the button to press, from 0 to 31.
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---
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### `void programmable_button_remove(uint8_t index)` {#api-programmable-button-remove}
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Reset the state of a button.
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#### Arguments {#api-programmable-button-remove-arguments}
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- `uint8_t index`
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The index of the button to release, from 0 to 31.
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---
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### `void programmable_button_register(uint8_t index)` {#api-programmable-button-register}
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Set the state of a button, and flush the report.
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#### Arguments {#api-programmable-button-register-arguments}
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- `uint8_t index`
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The index of the button to press, from 0 to 31.
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---
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### `void programmable_button_unregister(uint8_t index)` {#api-programmable-button-unregister}
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Reset the state of a button, and flush the report.
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#### Arguments {#api-programmable-button-unregister-arguments}
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- `uint8_t index`
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The index of the button to release, from 0 to 31.
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---
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### `bool programmable_button_is_on(uint8_t index)` {#api-programmable-button-is-on}
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Get the state of a button.
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#### Arguments {#api-programmable-button-is-on-arguments}
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- `uint8_t index`
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The index of the button to check, from 0 to 31.
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#### Return Value {#api-programmable-button-is-on-return}
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`true` if the button is pressed.
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---
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### `void programmable_button_flush(void)` {#api-programmable-button-flush}
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Send the programmable button report to the host.
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---
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### `uint32_t programmable_button_get_report(void)` {#api-programmable-button-get-report}
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Get the programmable button report.
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#### Return Value {#api-programmable-button-get-report-return}
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The bitmask of programmable button states.
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---
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### `void programmable_button_set_report(uint32_t report)` {#api-programmable-button-set-report}
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Set the programmable button report.
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#### Arguments {#api-programmable-button-set-report-arguments}
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- `uint32_t report`
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A bitmask of programmable button states.
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