Crate embassy_usb_driver
source ·Expand description
§embassy-usb-driver
This crate contains the driver traits for embassy-usb
. HAL/BSP crates can implement these
traits to add support for using embassy-usb
for a given chip/platform.
The traits are kept in a separate crate so that breaking changes in the higher-level embassy-usb
APIs don’t cause a semver-major bump of this crate. This allows existing HALs/BSPs to be used
with the newer embassy-usb
without needing updates.
If you’re writing an application using USB, you should depend on the main embassy-usb
crate
instead of this one.
§Interoperability
This crate can run on any executor.
Structs§
- Type-safe endpoint address.
- Allocating an endpoint failed.
- Information for an endpoint.
- Operation is unsupported by the driver.
Enums§
- Direction of USB traffic. Note that in the USB standard the direction is always indicated from the perspective of the host, which is backward for devices, but the standard directions are used for consistency.
- Errors returned by
EndpointIn::write
andEndpointOut::read
- USB endpoint transfer type. The values of this enum can be directly cast into
u8
to get the transfer bmAttributes transfer type bits. - Event returned by
Bus::poll
.
Traits§
- USB bus trait.
- USB control pipe trait.
- Main USB driver trait.
- Endpoint trait, common for OUT and IN.
- IN Endpoint trait.
- OUT Endpoint trait.