Struct evdev::EventType

source ·
pub struct EventType(pub u16);
Available on Unix only.
Expand description

Event types supported by the device.

Values correspond to /usr/include/linux/input-event-codes.h

This is implemented as a newtype around the u16 “type” field of input_event.

Tuple Fields§

§0: u16

Implementations§

A bookkeeping event. Usually not important to applications.

A key changed state. A key, or button, is usually a momentary switch (in the circuit sense). It has two states: down, or up. There are events for when keys are pressed (become down) and released (become up). There are also “key repeats”, where multiple events are sent while a key is down.

Movement on a relative axis. There is no absolute coordinate frame, just the fact that there was a change of a certain amount of units. Used for things like mouse movement or scroll wheels.

Movement on an absolute axis. Used for things such as touch events and joysticks.

Miscellaneous events that don’t fall into other categories. For example, Key presses may send MSC_SCAN events before each KEY event

Change in a switch value. Switches are boolean conditions and usually correspond to a toggle switch of some kind in hardware.

An LED was toggled.

A sound was made.

There are no events of this type, to my knowledge, but represents metadata about key repeat configuration.

I believe there are no events of this type, but rather this is used to represent that the device can create haptic effects.

I think this is unused?

A force feedback effect’s state changed.

An event originating from uinput.

Trait Implementations§

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Deserialize this value from the given Serde deserializer. Read more
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This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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