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Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
cyapa_load="YES" ig4_load="YES"
On many Chromebook models this driver can be automatically configured with the
help of the
chromebook_platform(4)
driver.
Alternatively, the
cyapa
driver can be manually configured in
/boot/device.hints:
hint.cyapa.0.at="iicbus0"
hint.cyapa.0.addr="0xCE"
hint.cyapa.1.at="iicbus1"
hint.cyapa.1.addr="0xCE"
2/3 1/3
+--------------------+------------+
| | Middle |
| | Button |
| Left | |
| Button +------------+
| | Right |
| | Button |
+--------------------+............|
| Thumb/Button Area | 15%
+---------------------------------+
| Two finger scrolling | |
| Use two fingers for Z axis scrolling. | |
| Button down/second finger | |
| While one finger clicks and holds down the touchpad, the second finger can be used to move the mouse cursor. This can be useful for drawing or selecting text. | |
| Thumb/Button area | |
| The lower 15% of the trackpad will not affect the mouse cursor position. This allows for high precision clicking, by controlling the cursor with the index finger and pushing/holding the pad down with the thumb. | |
| Trackpad button | |
| Push physical button. The left two thirds of the pad issues a LEFT button event. The upper right corner issues a MIDDLE button event. The lower right corner issues a RIGHT button. Optionally, tap to click can be enabled (see below). | |
On a system using device.hints(5), these values are configurable for cyapa:
| hint.cyapa.%d.at | |
| target iicbus(4). | |
| hint.cyapa.%d.addr | |
| cyapa i2c address on the iicbus(4). | |
| debug.cyapa_idle_freq | |
| Scan frequency in idle mode, the default is 1. | |
| debug.cyapa_slow_freq | |
| Scan frequency in slow mode, the default is 20. | |
| debug.cyapa_norm_freq | |
| Scan frequency in normal mode, the default is 100. | |
| debug.cyapa_minpressure | |
| Minimum pressure to detect a finger, the default is 12. | |
| debug.cyapa_enable_tapclick | |
| Controls tap to click. Possible values: | |
| 0 | Tap to click is disabled. This is the default value. |
| 1 | Tap to click always generates a left mouse button event. |
| 2 | Tap to click generates left mouse button event if the left 2/3rds of the pad are tapped and a right mouse button event otherwise. |
| 3 | Tap to click generates mouse button events as if the physical button was pressed (see DESCRIPTION above). |
| debug.cyapa_tapclick_min_ticks | |
| Minimum tap duration in ticks to create a click, the default is 1. | |
| debug.cyapa_tapclick_max_ticks | |
| Maximum tap duration in ticks to create a click, the default is 8. | |
| debug.cyapa_move_min_ticks | |
| Minimum ticks before cursor movement occurs, the default is 4. | |
| debug.cyapa_scroll_wait_ticks | |
| Ticks to wait before starting to scroll, the default is 0. | |
| debug.cyapa_scroll_stick_ticks | |
| Ticks while preventing cursor movement on single finger after scroll, the default is 15. | |
| debug.cyapa_thumbarea_percent | |
| Size of bottom thumb area in percent, the default is 15. | |
| debug.cyapa_debug | |
| Setting this to a non-zero value enables debug output to console and syslog, the default is 0. | |
| debug.cyapa_reset | |
| Setting this to a non-zero value reinitializes the device. The sysctl resets to zero immediately. | |
moused_enable="YES"
moused_port="/dev/cyapa0"
If vertical scrolling is not desired, add
moused_flags="-l0"
to rc.conf(5).
Enable tap to click for the left and the right mouse button and disable the thumb area by adding these lines to the sysctl.conf(5) file:
debug.cyapa_thumbarea_percent=0
debug.cyapa_enable_tapclick=2
It has been ported, modified, and enhanced for FreeBSD by Michael Gmelin <Mt freebsd@grem.de>.
This manual page was written by Michael Gmelin <Mt freebsd@grem.de>.
| CYAPA (4) | December 18, 2018 |
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