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embassy-usb-host

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BusState

embassy_usb_host

Struct BusState 

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pub struct BusState { /* private fields */ }
Expand description

Shared bus-wide state used by a BusHandle.

Holds the in-use USB device addresses (1–127) and an async mutex used to serialise enumerations on a single bus.

Addresses greater than 127 are not issued because their behavior is not specified (USB 2.0 §9.4.6).

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impl BusState

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pub const fn new() -> Self

Create new, empty bus state.

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pub fn free_address(&self, addr: u8)

Release a previously allocated device address.

No-op if the address is out of range or was not marked as in use.

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impl Default for BusState

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fn default() -> Self

Returns the “default value” for a type. Read more

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where T: 'static + ?Sized,

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type Error = Infallible

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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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