Struct DeviceWatchBuilder 

pub struct DeviceWatchBuilder { /* private fields */ }

Configure a DeviceWatch before starting it.

Only needed to widen device matching or to tune the settle delay; most callers want watch_devices.

Implementations

impl DeviceWatchBuilder

pub fn new() -> Self

Start configuring a watch.

pub fn known_devices(self, known: &[(u16, u16)]) -> Self

Also report devices matching these VID/PID pairs, even when their USB descriptors don’t carry the standard MTP class codes.

Mirrors MtpDevice::list_devices_with_known; pass the same list to both so a device you can list is also a device you can watch for.

pub fn settle_delay(self, delay: Duration) -> Self

How long to wait after a USB event before enumerating (default DEFAULT_SETTLE_DELAY).

Lower it to react faster at the risk of missing a device that hasn’t finished describing itself; raise it for devices that are slow to enumerate. Duration::ZERO enumerates immediately.

pub fn watch(self) -> Result<DeviceWatch, Error>

Start watching.

Enumerates once up front, so every device already connected is reported as HotplugEvent::Arrived when the stream is first polled.

Errors

Returns an error if the OS refuses to set up USB hotplug notifications.

Trait Implementations

impl Clone for DeviceWatchBuilder

fn clone(&self) -> DeviceWatchBuilder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DeviceWatchBuilder

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

Formats the value using the given formatter.

impl Default for DeviceWatchBuilder

fn default() -> Self

Returns the “default value” for a type.