Struct linuxvideo::Capabilities

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pub struct Capabilities(_);
Expand description

Stores generic device information.

Returned by Device::capabilities.

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impl Capabilities

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pub fn driver(&self) -> &str

Returns the identifier of the V4L2 driver that provides this device.

Examples:

  • uvcvideo
  • v4l2 loopback
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pub fn card(&self) -> &str

Returns the card or device name.

For v4l2loopback devices, the reported card name can be configured by passing the card_label parameter when loading the module (or via modprobe.d).

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pub fn bus_info(&self) -> &str

Returns a description of where on the system the device is attached.

Examples:

  • usb-0000:0a:00.3-2.1
  • platform:v4l2loopback-002
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pub fn all_capabilities(&self) -> CapabilityFlags

Returns all capabilities the underlying hardware device exposes.

Some capabilities might be inaccessible through the opened device node and require opening a different one.

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pub fn device_capabilities(&self) -> CapabilityFlags

Returns the capabilities available through the currently opened device node.

Trait Implementations§

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impl Debug for Capabilities

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.