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# uvcgadget - UVC gadget C library
uvcgadget is a pure C library that implements handling of UVC gadget functions.
## Utilities
- uvc-gadget - Sample test application
## Build instructions:
To compile:
```
$ mkdir build
$ cd build
$ cmake ..
$ make -j4
```
## Cross compiling instructions:
Directions for cross compiling depend on the build environment.
For buildroot-based builds, cmake can be pointed to the toolchain file provided
by buildroot:
```
$ mkdir build
$ cd build
$ cmake -DCMAKE_TOOLCHAIN_FILE=<buildrootpath>/output/host/usr/share/buildroot/toolchainfile.cmake ..
$ make -j4
```
If your build environment doesn't provide a CMake toolchain file, the following
template can be used as a starting point.
```
set(CMAKE_SYSTEM_NAME Linux)
set(BUILD_ENV_ROOT "/path/to/your/build/enviroment/root/")
# Specify the cross compiler
set(CMAKE_C_COMPILER ${BUILD_ENV_ROOT}/host/usr/bin/arm-buildroot-linux-gnueabihf-gcc)
# Where is the target environment
set(CMAKE_FIND_ROOT_PATH ${BUILD_ENV_ROOT}/target ${BUILD_ENV_ROOT}/host)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
```
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