TinyUSB is an open-source cross-platform USB Host/Device stack for
embedded system, designed to be memory-safe with no dynamic allocation
and thread-safe with all interrupt events are deferred then handled in
the non-ISR task function.

Please take a look at the online
documentation.

{width="500px"}

.
├── docs            # Documentation
├── examples        # Sample with Makefile build support
├── hw
│   ├── bsp         # Supported boards source files
│   └── mcu         # Low level mcu core & peripheral drivers
├── lib             # Sources from 3rd party such as freeRTOS, fatfs ...
├── src             # All sources files for TinyUSB stack itself.
├── test            # Unit tests for the stack
└── tools           # Files used internally

Supported MCUs

The stack supports the following MCUs:

• Allwinner: F1C100s/F1C200s
• Broadcom: BCM2837, BCM2711
• Dialog: DA1469x
• Espressif: ESP32-S2, ESP32-S3
• GigaDevice: GD32VF103
• Infineon: XMC4500
• MicroChip: SAMD11, SAMD21, SAMD51, SAME5x, SAMG55, SAML21,
  SAML22, SAME7x
• NordicSemi: nRF52833, nRF52840, nRF5340
• Nuvoton: NUC120, NUC121/NUC125, NUC126, NUC505
• NXP:
  • iMX RT Series: RT1011, RT1015, RT1021, RT1052, RT1062, RT1064
  • Kinetis: KL25, K32L2
  • LPC Series: 11u, 13, 15, 17, 18, 40, 43, 51u, 54, 55
• Raspberry Pi: RP2040
• Renesas: RX63N, RX65N, RX72N
• Silabs: EFM32GG
• Sony: CXD56
• ST: STM32 series: F0, F1, F2, F3, F4, F7, H7, G4, L0, L1, L4,
  L4+
• TI: MSP430, MSP432E4, TM4C123
• ValentyUSB: eptri

Here is the list of Supported Devices
that can be used with provided examples.

Device Stack

Supports multiple device configurations by dynamically changing USB
descriptors, low power functions such like suspend, resume, and remote
wakeup. The following device classes are supported:

• Audio Class 2.0 (UAC2)
• Bluetooth Host Controller Interface (BTH HCI)
• Communication Device Class (CDC)
• Device Firmware Update (DFU): DFU mode (WIP) and Runtime
• Human Interface Device (HID): Generic (In & Out), Keyboard, Mouse,
  Gamepad etc ...
• Mass Storage Class (MSC): with multiple LUNs
• Musical Instrument Digital Interface (MIDI)
• Network with RNDIS, Ethernet Control Model (ECM), Network Control
  Model (NCM)
• Test and Measurement Class (USBTMC)
• Video class 1.5 (UVC): work in progress
• Vendor-specific class support with generic In & Out endpoints. Can
  be used with MS OS 2.0 compatible descriptor to load winUSB driver
  without INF file.
• WebUSB with vendor-specific class

If you have a special requirement,
[usbd_app_driver_get_cb()]{.title-ref} can be used to write your own
class driver without modifying the stack. Here is how the RPi team added
their reset interface
raspberrypi/pico-sdk#197

Host Stack

• Human Interface Device (HID): Keyboard, Mouse, Generic
• Mass Storage Class (MSC)
• Hub currently only supports 1 level of hub (due to my laziness)

OS Abstraction layer

TinyUSB is completely thread-safe by pushing all Interrupt Service
Request (ISR) events into a central queue, then processing them later in
the non-ISR context task function. It also uses semaphore/mutex to
access shared resources such as Communication Device Class (CDC) FIFO.
Therefore the stack needs to use some of the OS's basic APIs. Following
OSes are already supported out of the box.

• No OS
• FreeRTOS
• RT-Thread:
  repo
• Mynewt Due to the newt package build system, Mynewt examples are
  better to be on its own
  repo

Local Docs

• Info
  • Uses
  • Changelog
  • Contributors
• Reference
  • Supported Devices
  • Getting Started
  • Concurrency
• Contributing
  • Code of Conduct
  • Structure
  • Porting

License

All TinyUSB sources in the src folder are licensed under MIT license,
the Full license is here. However, each file can be
individually licensed especially those in lib and hw/mcu folder.
Please make sure you understand all the license term for files you use
in your project.