USB stack for embedded devices in Rust.
The UsbDevice object represents a composite USB device and is the most important object for application implementors. The UsbDevice combines a number of UsbClasses (either custom ones, or pre-existing ones provided by other crates) and a UsbBus device driver to implement the USB device.
The UsbClass trait can be used to implement USB classes such as a HID device or a serial port. An implementation may also use a custom class if the required functionality isn't covered by a standard class.
The UsbBus trait is intended to be implemented by device-specific crates to provide a driver for each device's USB peripheral.
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atsam4 - device-driver implementation for atsam4e & atsam4s microcontrollers (UDP). Examples can be found here. While not expressly supported with this crate, atsam3s and atsam55g could also be supported with a similar code-base.
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atsamd - device-driver implementation for samd21 & samd51 microcontrollers. An example for the itsybitsy_m4 board from Adafruit can be found here.
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imxrt-usbd - device-driver implementation for NXP i.MX RT microcontrollers. Examples for i.MX RT boards, like the Teensy 4, are maintained with the driver.
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stm32-usbd - device-driver implementation for multiple STM32 microcontroller families. Examples can be found in each individual HAL crate that implements the USB peripheral.
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rp2040-hal - device-driver implementation for the raspberry pi RP2040 microcontroller. Examples can be found in the various boards crates here.
- usbd-hid
- HID class
- usbd-human-interface-device
- HID class
- usbd-serial
- CDC-ACM serial port class
- usbd-storage
- (Experimental) Mass storage port class
- usbd-dfu
- Device Firmware Upgrade class
- usbd-picotool-reset
- picotool-reset class
- usbd-midi
- MIDI class
Other implementations for USB in Rust
- The Embassy project has an async USB stack, embassy-usb.