Here is a list of all files with brief descriptions:

opensubdiv
bfr
limits.h
parameterization.h
refinerSurfaceFactory.h
surface.h
surfaceFactory.h
surfaceFactoryCache.h
surfaceFactoryMeshAdapter.h
tessellation.h
vertexDescriptor.h
far
error.h
patchDescriptor.h
patchMap.h
patchParam.h
patchTable.h
patchTableFactory.h
primvarRefiner.h
ptexIndices.h
stencilTable.h
stencilTableFactory.h
topologyDescriptor.h
topologyLevel.h
topologyRefiner.h
topologyRefinerFactory.h
types.h
osd
bufferDescriptor.h
clEvaluator.h
clPatchTable.h
clVertexBuffer.h
cpuD3D11VertexBuffer.h
cpuEvaluator.h
cpuGLVertexBuffer.h
cpuPatchTable.h
cpuVertexBuffer.h
cudaEvaluator.h
cudaPatchTable.h
cudaVertexBuffer.h
d3d11ComputeEvaluator.h
d3d11LegacyGregoryPatchTable.h
d3d11Mesh.h
d3d11PatchTable.h
d3d11VertexBuffer.h
glComputeEvaluator.h
glLegacyGregoryPatchTable.h
glMesh.h
glPatchTable.h
glVertexBuffer.h
glXFBEvaluator.h
mesh.h
mtlCommon.h
mtlComputeEvaluator.h
mtlLegacyGregoryPatchTable.h
mtlMesh.h
mtlPatchTable.h
mtlVertexBuffer.h
ompEvaluator.h
ompKernel.h
opencl.h
opengl.h
tbbEvaluator.h
tbbKernel.h
types.h
sdc
bilinearScheme.h
catmarkScheme.h
crease.h
loopScheme.h
options.h
scheme.h
types.h
vtr
array.h
componentInterfaces.h
fvarLevel.h
fvarRefinement.h
level.h
refinement.h
sparseSelector.h
stackBuffer.h
types.h