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new 0.7.3 | Nov 19, 2024 |
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0.7.2 | Jun 25, 2024 |
0.7.1 | Apr 22, 2024 |
0.7.0 | Mar 14, 2024 |
0.6.0 | Nov 11, 2023 |
#435 in Hardware support
279 downloads per month
Used in 3 crates
180KB
4K
SLoC
usb-gadget
This library allows implementation of USB peripherals, so called USB gadgets, on Linux devices that have a USB device controller (UDC). Both, pre-defined USB functions and fully custom implementations of the USB interface are supported.
The following pre-defined USB functions, implemented by kernel drivers, are available:
- network interface
- CDC ECM
- CDC ECM (subset)
- CDC EEM
- CDC NCM
- RNDIS
- serial port
- CDC ACM
- generic
- human interface device (HID)
- mass-storage device (MSD)
In addition fully custom USB functions can be implemented in user-mode Rust code.
Support for OS-specific descriptors and WebUSB is also provided.
Features
This crate provides the following optional features:
tokio
: enables async support for custom USB functions on top of the Tokio runtime.
Requirements
The minimum support Rust version (MSRV) is 1.73.
A USB device controller (UDC) supported by Linux is required. Normally, standard PCs do not include an UDC. A Raspberry Pi 4 contains an UDC, which is connected to its USB-C port.
The following Linux kernel configuration options should be enabled for full functionality:
CONFIG_USB_GADGET
CONFIG_USB_CONFIGFS
CONFIG_USB_CONFIGFS_SERIAL
CONFIG_USB_CONFIGFS_ACM
CONFIG_USB_CONFIGFS_NCM
CONFIG_USB_CONFIGFS_ECM
CONFIG_USB_CONFIGFS_ECM_SUBSET
CONFIG_USB_CONFIGFS_RNDIS
CONFIG_USB_CONFIGFS_EEM
CONFIG_USB_CONFIGFS_MASS_STORAGE
CONFIG_USB_CONFIGFS_F_FS
CONFIG_USB_CONFIGFS_F_HID
root permissions are required to configure USB gadgets on Linux and
the configfs
filesystem needs to be mounted.
License
usb-gadget is licensed under the Apache 2.0 license.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in usb-gadget by you, shall be licensed as Apache 2.0, without any additional terms or conditions.
Dependencies
~2–11MB
~120K SLoC