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Improve man page formatting
More closely follow common style as described on https://man7.org/linux/man-pages/man7/man-pages.7.html and fix warnings raised by `mandoc -T lint` and `groff -rCHECKSTYLE=10` Part-of: <https://gitlab.freedesktop.org/xorg/driver/xf86-input-evdev/-/merge_requests/13>
This commit is contained in:
Alan Coopersmith
320
man/evdev.man
320
man/evdev.man
@@ -1,6 +1,6 @@
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.\" shorthand for double quote that works everywhere.
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.ds q \N'34'
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.TH EVDEV __drivermansuffix__ __vendorversion__
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.TH EVDEV __drivermansuffix__ 2016-11-17 __vendorversion__
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.SH NAME
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evdev \- Generic Linux input driver
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.SH SYNOPSIS
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@@ -16,103 +16,118 @@ evdev \- Generic Linux input driver
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.B EndSection
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.fi
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.SH DESCRIPTION
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.B evdev
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is an __xservername__ input driver for Linux\'s generic event devices. It
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therefore supports all input devices that the kernel knows about, including
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most mice, keyboards, tablets and touchscreens.
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.B evdev
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is an __xservername__ input driver for Linux\'s generic event devices.
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It therefore supports all input devices that the kernel knows about,
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including most mice, keyboards, tablets, and touchscreens.
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.B evdev
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is the default driver on the major Linux distributions.
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.PP
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The
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The
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.B evdev
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driver can serve as both a pointer and a keyboard input device. Multiple
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input devices are supported by multiple instances of this driver, with one
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InputDevice section of your __xconfigfile__ for each input device that will
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use this driver.
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driver can serve as both a pointer and a keyboard input device.
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Multiple input devices are supported by multiple instances of this driver,
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with one InputDevice section of your __xconfigfile__ for each input device
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that will use this driver.
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.PP
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It is recommended that
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.B evdev
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devices are configured through the
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.B InputClass
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directive (refer to __xconfigfile__(__filemansuffix__)) instead of manual
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per-device configuration. Devices configured in the
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__xconfigfile__(__filemansuffix__) are not hot-plug capable.
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.PP
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directive (refer to
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.BR __xconfigfile__ (__filemansuffix__))
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instead of manual per-device configuration.
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Devices configured in the
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.BR __xconfigfile__ (__filemansuffix__)
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are not hot-plug capable.
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.SH SUPPORTED HARDWARE
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In general, any input device that the kernel has a driver for can be accessed
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through the
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through the
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.B evdev
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driver. See the Linux kernel documentation for a complete list.
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.PP
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driver.
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See the Linux kernel documentation for a complete list.
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.SH CONFIGURATION DETAILS
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Please refer to __xconfigfile__(__filemansuffix__) for general configuration
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details and for options that can be used with all input drivers. This
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section only covers configuration details specific to this driver.
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Please refer to
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.BR __xconfigfile__ (__filemansuffix__)
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for general configuration details and
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for options that can be used with all input drivers.
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This section only covers configuration details specific to this driver.
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.PP
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The following driver
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The following driver
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.B Options
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are supported:
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.TP 7
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.BI "Option \*qButtonMapping\*q \*q" string \*q
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Sets the button mapping for this device. The mapping is a space-separated list
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of button mappings that correspond in order to the physical buttons on the
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device (i.e. the first number is the mapping for button 1, etc.). The default
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mapping is "1 2 3 ... 32". A mapping of 0 deactivates the button. Multiple
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buttons can have the same mapping.
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Sets the button mapping for this device.
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The mapping is a space-separated list of button mappings
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that correspond in order to the physical buttons on the device
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(i.e. the first number is the mapping for button 1, etc.).
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The default mapping is "1 2 3 ... 32".
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A mapping of 0 deactivates the button.
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Multiple buttons can have the same mapping.
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For example, a left-handed mouse with deactivated scroll-wheel would use a
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mapping of "3 2 1 0 0". Invalid mappings are ignored and the default mapping
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is used. Buttons not specified in the user's mapping use the default mapping.
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mapping of "3 2 1 0 0".
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Invalid mappings are ignored and the default mapping is used.
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Buttons not specified in the user's mapping use the default mapping.
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.TP 7
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.BI "Option \*qDevice\*q \*q" string \*q
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Specifies the device through which the device can be accessed. This will
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generally be of the form \*q/dev/input/eventX\*q, where X is some integer.
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The mapping from device node to hardware is system-dependent. Property:
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"Device Node" (read-only).
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Specifies the device through which the device can be accessed.
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This will generally be of the form \*q/dev/input/eventX\*q,
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where X is some integer.
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The mapping from device node to hardware is system-dependent.
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Property: "Device Node" (read-only).
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.TP 7
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.BI "Option \*qDragLockButtons\*q \*q" "L1 B2 L3 B4" \*q
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Sets \*qdrag lock buttons\*q that simulate holding a button down, so
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that low dexterity people do not have to hold a button down at the
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same time they move a mouse cursor. Button numbers occur in pairs,
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with the lock button number occurring first, followed by the button
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number that is the target of the lock button. Property: "Evdev
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same time they move a mouse cursor.
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Button numbers occur in pairs,
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with the lock button number occurring first,
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followed by the button number that is the target of the lock button.
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Property: "Evdev
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Drag Lock Buttons".
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.TP 7
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.BI "Option \*qDragLockButtons\*q \*q" "M1" \*q
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Sets a \*qmaster drag lock button\*q that acts as a \*qMeta Key\*q
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indicating that the next button pressed is to be
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\*qdrag locked\*q. Property: "Evdev Drag Lock Buttons".
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.TP 7
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indicating that the next button pressed is to be \*qdrag locked\*q.
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Property: "Evdev Drag Lock Buttons".
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.TP 7
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.BI "Option \*qEmulate3Buttons\*q \*q" boolean \*q
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Enable/disable the emulation of the third (middle) mouse button for mice
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which only have two physical buttons. The third button is emulated by
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pressing both buttons simultaneously. Default: off. Property: "Evdev Middle
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Button Emulation".
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which only have two physical buttons.
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The third button is emulated by pressing both buttons simultaneously.
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Default: off.
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Property: "Evdev Middle Button Emulation".
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.TP 7
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.BI "Option \*qEmulate3Timeout\*q \*q" integer \*q
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Sets the timeout (in milliseconds) that the driver waits before deciding
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if two buttons where pressed "simultaneously" when 3 button emulation is
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enabled. Default: 50. Property: "Evdev Middle Button Timeout".
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if two buttons were pressed "simultaneously" when 3 button emulation is enabled.
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Default: 50.
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Property: "Evdev Middle Button Timeout".
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.TP 7
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.BI "Option \*qEmulate3Button\*q \*q" integer \*q
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Specifies the physical button number to be emitted if middle button emulation
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is triggered.
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Default: 2. Property: "Evdev Middle Button Button".
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Default: 2.
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Property: "Evdev Middle Button Button".
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.TP 7
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.BI "Option \*qEmulateWheel\*q \*q" boolean \*q
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Enable/disable "wheel" emulation. Wheel emulation means emulating button
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press/release events when the mouse is moved while a specific real button
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is pressed. Wheel button events (typically buttons 4 and 5) are
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usually used for scrolling. Wheel emulation is useful for getting wheel-like
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behaviour with trackballs. It can also be useful for mice with 4 or
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more buttons but no wheel. See the description of the
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Enable/disable "wheel" emulation.
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Wheel emulation means emulating button press/release events
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when the mouse is moved while a specific real button is pressed.
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Wheel button events (typically buttons 4 and 5) are usually used for scrolling.
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Wheel emulation is useful for getting wheel-like behaviour with trackballs.
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It can also be useful for mice with 4 or more buttons but no wheel.
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See the description of the
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.BR EmulateWheelButton ,
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.BR EmulateWheelInertia ,
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.BR EmulateWheelTimeout ,
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.BR XAxisMapping ,
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and
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.B YAxisMapping
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options. Default: off. Property "Evdev Wheel Emulation".
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options.
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Default: off.
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Property: "Evdev Wheel Emulation".
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.TP 7
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.BI "Option \*qEmulateWheelButton\*q \*q" integer \*q
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Specifies which button must be held down to enable wheel emulation mode.
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@@ -121,97 +136,119 @@ press/release events as specified for the
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.B XAxisMapping
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and
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.B YAxisMapping
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settings. If the button is 0 and
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.BR EmulateWheel
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is on, any motion of the device is converted into wheel events. Default: 4.
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settings.
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If the button is 0 and
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.B EmulateWheel
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is on, any motion of the device is converted into wheel events.
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Default: 4.
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Property: "Evdev Wheel Emulation Button".
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.TP 7
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.BI "Option \*qEmulateWheelInertia\*q \*q" integer \*q
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Specifies how far (in pixels) the pointer must move to generate button
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press/release events in wheel emulation mode. Default: 10. Property: "Evdev
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Wheel Emulation Inertia".
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press/release events in wheel emulation mode.
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Default: 10.
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Property: "Evdev Wheel Emulation Inertia".
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.IP
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This value must be set for any device does not resemble a standard mouse.
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Specifically, on absolute devices such as tablets the value should be set to
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a reasonable fraction of the expected movement to avoid excess scroll events.
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.IP
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.B WARNING:
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the name \*qinertia\*q is a misnomer. This option defines the distance
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required to generate one scroll event similar to the
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the name \*qinertia\*q is a misnomer.
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This option defines the distance required to generate one scroll event
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similar to the
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.B VertScrollDelta
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and
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.B HorizScrollDelta
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options. It does not enable inertia in the
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physical sense, scrolling stops immediately once the movement has stopped.
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options.
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It does not enable inertia in the physical sense,
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scrolling stops immediately once the movement has stopped.
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.TP 7
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.BI "Option \*qEmulateWheelTimeout\*q \*q" integer \*q
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Specifies the time in milliseconds the
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.BR EmulateWheelButton
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must be pressed before wheel emulation is started. If the
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.BR EmulateWheelButton
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is released before this timeout, the original button press/release event
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is sent. Default: 200. Property: "Evdev Wheel Emulation Timeout".
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.B EmulateWheelButton
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must be pressed before wheel emulation is started.
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If the
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.B EmulateWheelButton
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is released before this timeout,
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the original button press/release event is sent.
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Default: 200.
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Property: "Evdev Wheel Emulation Timeout".
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.TP 7
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.BI "Option \*qEmulateThirdButton\*q \*q" boolean \*q
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Enable third button emulation. Third button emulation emits a right button
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event (by default) by pressing and holding the first button. The first
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button must be held down for the configured timeout and must not move more
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than the configured threshold for the emulation to activate. Otherwise, the
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first button event is posted as normal. Default: off. Property: "Evdev
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Third Button Emulation".
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Enable third button emulation.
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Third button emulation emits a right button event (by default)
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by pressing and holding the first button.
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The first button must be held down for the configured timeout and
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must not move more than the configured threshold for the emulation to activate.
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Otherwise, the first button event is posted as normal.
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Default: off.
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Property: "Evdev Third Button Emulation".
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.TP 7
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.BI "Option \*qEmulateThirdButtonTimeout\*q \*q" integer \*q
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Specifies the timeout in milliseconds between the initial button press and
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the generation of the emulated button event.
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Default: 1000. Property: "Evdev Third Button Emulation Timeout".
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Default: 1000.
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Property: "Evdev Third Button Emulation Timeout".
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.TP 7
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.BI "Option \*qEmulateThirdButtonButton\*q \*q" integer \*q
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Specifies the physical button number to be emitted if third button emulation
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is triggered.
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Default: 3. Property: "Evdev Third Button Button".
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Default: 3.
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Property: "Evdev Third Button Button".
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.TP 7
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.BI "Option \*qEmulateThirdButtonMoveThreshold\*q \*q" integer \*q
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Specifies the maximum move fuzz in device coordinates for third button
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emulation. If the device moves by more than this threshold before the third
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emulation.
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If the device moves by more than this threshold before the third
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button emulation is triggered, the emulation is cancelled and a first button
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event is generated as normal.
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Default: 20. Property: "Evdev Third Button Emulation Threshold".
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Default: 20.
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Property: "Evdev Third Button Emulation Threshold".
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.TP 7
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.BI "Option \*qGrabDevice\*q \*q" boolean \*q
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Force a grab on the event device. Doing so will ensure that no other driver
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Force a grab on the event device.
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Doing so will ensure that no other driver
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can initialise the same device and it will also stop the device from sending
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events to /dev/kbd or /dev/input/mice. Events from this device will not be
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sent to virtual devices (e.g. rfkill or the Macintosh mouse button emulation).
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events to /dev/kbd or /dev/input/mice.
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Events from this device will not be sent to virtual devices
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(e.g. rfkill or the Macintosh mouse button emulation).
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Default: disabled.
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.TP 7
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.BI "Option \*qInvertX\*q \*q" Bool \*q
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.TP 7
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.BI "Option \*qInvertY\*q \*q" Bool \*q
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Invert the given axis. Default: off. Property: "Evdev Axis Inversion".
|
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Invert the given axis.
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Default: off.
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Property: "Evdev Axis Inversion".
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.TP 7
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.BI "Option \*qIgnoreRelativeAxes\*q \*q" Bool \*q
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.TP 7
|
||||
.BI "Option \*qIgnoreAbsoluteAxes\*q \*q" Bool \*q
|
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Ignore the specified type of axis. Default: unset. The X server cannot deal
|
||||
with devices that have both relative and absolute axes. Evdev tries to guess
|
||||
which axes to ignore given the device type and disables absolute axes for
|
||||
mice and relative axes for tablets, touchscreens and touchpad. These options
|
||||
allow to forcibly disable an axis type. Mouse wheel axes are exempt and will
|
||||
work even if relative axes are ignored. No property, this configuration must
|
||||
be set in the configuration.
|
||||
Ignore the specified type of axis.
|
||||
Default: unset.
|
||||
The X server cannot deal with devices that have both relative and absolute axes.
|
||||
Evdev tries to guess which axes to ignore given the device type and
|
||||
disables absolute axes for mice and relative axes for tablets, touchscreens,
|
||||
and touchpad.
|
||||
These options allow to forcibly disable an axis type.
|
||||
Mouse wheel axes are exempt and will work even if relative axes are ignored.
|
||||
No property, this configuration must be set in the configuration.
|
||||
.br
|
||||
If either option is set to False, the driver will not ignore the specified
|
||||
axes regardless of the presence of other axes. This may trigger buggy
|
||||
behavior and events from this axis are always forwarded. Users are
|
||||
discouraged from setting this option.
|
||||
axes regardless of the presence of other axes.
|
||||
This may trigger buggy behavior and events from this axis are always forwarded.
|
||||
Users are discouraged from setting this option.
|
||||
.TP 7
|
||||
.BI "Option \*qCalibration\*q \*q" "min-x max-x min-y max-y" \*q
|
||||
Calibrates the X and Y axes for devices that need to scale to a different
|
||||
coordinate system than reported to the X server. This feature is required
|
||||
for devices that need to scale to a different coordinate system than
|
||||
originally reported by the kernel (e.g. touchscreens). The scaling to the
|
||||
custom coordinate system is done in-driver and the X server is unaware of
|
||||
the transformation. Property: "Evdev Axis Calibration".
|
||||
coordinate system than reported to the X server.
|
||||
This feature is required for devices that need to scale to
|
||||
a different coordinate system than originally reported by the kernel
|
||||
(e.g. touchscreens).
|
||||
The scaling to the custom coordinate system is done in-driver and
|
||||
the X server is unaware of the transformation.
|
||||
Property: "Evdev Axis Calibration".
|
||||
.TP 7
|
||||
.B Option \*qMode\*q \*qRelative\*q\fP|\fP\*qAbsolute\*q
|
||||
Sets the mode of the device if device has absolute axes.
|
||||
@@ -219,97 +256,114 @@ The default value for touchpads is relative, for other absolute.
|
||||
This option has no effect on devices without absolute axes.
|
||||
.TP 7
|
||||
.BI "Option \*qSwapAxes\*q \*q" Bool \*q
|
||||
Swap x/y axes. Default: off. Property: "Evdev Axes Swap".
|
||||
Swap x/y axes.
|
||||
Default: off.
|
||||
Property: "Evdev Axes Swap".
|
||||
.TP 7
|
||||
.BI "Option \*qXAxisMapping\*q \*q" "N1 N2" \*q
|
||||
Specifies which buttons are mapped to motion in the X direction in wheel
|
||||
emulation mode. Button number
|
||||
emulation mode.
|
||||
Button number
|
||||
.I N1
|
||||
is mapped to the negative X axis motion and button number
|
||||
.I N2
|
||||
is mapped to the positive X axis motion. Default: no mapping. Property:
|
||||
"Evdev Wheel Emulation Axes".
|
||||
is mapped to the positive X axis motion.
|
||||
Default: no mapping.
|
||||
Property: "Evdev Wheel Emulation Axes".
|
||||
.TP 7
|
||||
.BI "Option \*qYAxisMapping\*q \*q" "N1 N2" \*q
|
||||
Specifies which buttons are mapped to motion in the Y direction in wheel
|
||||
emulation mode. Button number
|
||||
emulation mode.
|
||||
Button number
|
||||
.I N1
|
||||
is mapped to the negative Y axis motion and button number
|
||||
.I N2
|
||||
is mapped to the positive Y axis motion. Default: "4 5". Property:
|
||||
"Evdev Wheel Emulation Axes".
|
||||
is mapped to the positive Y axis motion.
|
||||
Default: "4 5".
|
||||
Property: "Evdev Wheel Emulation Axes".
|
||||
.TP 7
|
||||
.BI "Option \*qTypeName\*q \*q"type"\*q
|
||||
Specify the X Input 1.x type (see XListInputDevices(__libmansuffix__)).
|
||||
.BI "Option \*qTypeName\*q" \*q"type"\*q
|
||||
Specify the X Input 1.x type (see
|
||||
.BR XListInputDevices (__libmansuffix__)).
|
||||
There is rarely a need to use this option, evdev will guess the device type
|
||||
based on the device's capabilities. This option is provided for devices that
|
||||
need quirks.
|
||||
based on the device's capabilities.
|
||||
This option is provided for devices that need quirks.
|
||||
.TP 7
|
||||
.BI "Option \*qVertScrollDelta\*q \*q" integer \*q
|
||||
The amount of motion considered one unit of scrolling vertically.
|
||||
Default: "1". Property: "Evdev Scrolling Distance".
|
||||
Default: "1".
|
||||
Property: "Evdev Scrolling Distance".
|
||||
.TP 7
|
||||
.BI "Option \*qHorizScrollDelta\*q \*q" integer \*q
|
||||
The amount of motion considered one unit of scrolling horizontally.
|
||||
Default: "1". Property: "Evdev Scrolling Distance".
|
||||
Default: "1".
|
||||
Property: "Evdev Scrolling Distance".
|
||||
.TP 7
|
||||
.BI "Option \*qDialDelta\*q \*q" integer \*q
|
||||
The amount of motion considered one unit of turning the dial. Default: "1".
|
||||
The amount of motion considered one unit of turning the dial.
|
||||
Default: "1".
|
||||
Property: "Evdev Scrolling Distance".
|
||||
.TP 7
|
||||
.BI "Option \*qResolution\*q \*q" integer \*q
|
||||
Sets the resolution of the device in dots per inch. The resolution is used
|
||||
to scale relative motion events from mouse devices to 1000 DPI resolution. This
|
||||
can be used to make high resolution mice less sensitive without turning off
|
||||
acceleration. If set to 0 no scaling will be performed. Default: "0".
|
||||
|
||||
Sets the resolution of the device in dots per inch.
|
||||
The resolution is used to scale relative motion events from mouse devices to
|
||||
1000 DPI resolution.
|
||||
This can be used to make high resolution mice less sensitive without turning off
|
||||
acceleration.
|
||||
If set to 0 no scaling will be performed.
|
||||
Default: "0".
|
||||
.SH SUPPORTED PROPERTIES
|
||||
The following properties are provided by the
|
||||
.B evdev
|
||||
driver.
|
||||
.TP 7
|
||||
.BI "Evdev Axis Calibration"
|
||||
.B "Evdev Axis Calibration"
|
||||
4 32-bit values, order min-x, max-x, min-y, max-y or 0 values to disable
|
||||
in-driver axis calibration.
|
||||
.TP 7
|
||||
.BI "Evdev Axis Inversion"
|
||||
2 boolean values (8 bit, 0 or 1), order X, Y. 1 inverts the axis.
|
||||
.B "Evdev Axis Inversion"
|
||||
2 boolean values (8 bit, 0 or 1), order X, Y.
|
||||
1 inverts the axis.
|
||||
.TP 7
|
||||
.BI "Evdev Axes Swap"
|
||||
1 boolean value (8 bit, 0 or 1). 1 swaps x/y axes.
|
||||
.B "Evdev Axes Swap"
|
||||
1 boolean value (8 bit, 0 or 1).
|
||||
1 swaps x/y axes.
|
||||
.TP 7
|
||||
.BI "Evdev Drag Lock Buttons"
|
||||
8-bit. Either 1 value or pairs of values. Value range 0-32, 0 disables a
|
||||
value.
|
||||
.B "Evdev Drag Lock Buttons"
|
||||
8-bit. Either 1 value or pairs of values.
|
||||
Value range 0-32, 0 disables a value.
|
||||
.TP 7
|
||||
.BI "Evdev Middle Button Emulation"
|
||||
.B "Evdev Middle Button Emulation"
|
||||
1 boolean value (8 bit, 0 or 1).
|
||||
.TP 7
|
||||
.BI "Evdev Middle Button Timeout"
|
||||
.B "Evdev Middle Button Timeout"
|
||||
1 16-bit positive value.
|
||||
.TP 7
|
||||
.BI "Evdev Middle Button Button"
|
||||
.B "Evdev Middle Button Button"
|
||||
1 8-bit value, allowed range 0-32, 0 disables the button.
|
||||
.TP 7
|
||||
.BI "Evdev Wheel Emulation"
|
||||
.B "Evdev Wheel Emulation"
|
||||
1 boolean value (8 bit, 0 or 1).
|
||||
.TP 7
|
||||
.BI "Evdev Wheel Emulation Axes"
|
||||
4 8-bit values, order X up, X down, Y up, Y down. 0 disables a value.
|
||||
.B "Evdev Wheel Emulation Axes"
|
||||
4 8-bit values, order X up, X down, Y up, Y down.
|
||||
0 disables a value.
|
||||
.TP 7
|
||||
.BI "Evdev Wheel Emulation Button"
|
||||
.B "Evdev Wheel Emulation Button"
|
||||
1 8-bit value, allowed range 0-32, 0 disables the button.
|
||||
.TP 7
|
||||
.BI "Evdev Wheel Emulation Inertia"
|
||||
.B "Evdev Wheel Emulation Inertia"
|
||||
1 16-bit positive value.
|
||||
.TP 7
|
||||
.BI "Evdev Wheel Emulation Timeout"
|
||||
.B "Evdev Wheel Emulation Timeout"
|
||||
1 16-bit positive value.
|
||||
.TP 7
|
||||
.BI "Evdev Scrolling Distance"
|
||||
.B "Evdev Scrolling Distance"
|
||||
3 32-bit values: vertical, horizontal and dial.
|
||||
|
||||
.SH AUTHORS
|
||||
Kristian Høgsberg, Peter Hutterer
|
||||
.SH "SEE ALSO"
|
||||
__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)
|
||||
.BR __xservername__ (__appmansuffix__),
|
||||
.BR __xconfigfile__ (__filemansuffix__),
|
||||
.BR Xserver (__appmansuffix__),
|
||||
.BR X (__miscmansuffix__)
|
||||
|
||||
Reference in New Issue
Block a user