Here is a list of all files with brief descriptions:

[detail level 1234]

▼ include
▼ utl
▼ com
_1wire.h	An 1-wire interface implementation
_1wire_id.h	An 1-wire Rom ID type
_1wire_uart.h	A 1-wire implementation using a microprocessor's uart for bit timing
i2c.h	An Abstract base class interface for the i2c bus
i2c_bb.h	A bit banking implementation of i2c bus inherited from i2c_i base class
spi.h	An Abstract base class interface for the spi bus
spi_bb.h	A bit banking implementation of spi bus inherited from spi_i base class
▼ concepts
concepts.h	Concepts main include header
defines.h	Concepts defines
iterators.h
stl.h	STL's Concepts
▼ container
array.h
id.h	A container for device IDs
▼ core
crtp.h
impl.h	Implementation detail main forward header
types.h	Basic type alias support
version.h	Version and cpp version checks
▼ dev
dev_iterators.h	Iterator collection for devices
idx_dev.h	Abstract base class implementations for indexed devices interface of utl
in_dev.h	Abstract base class interface for input devices of utl
inbuf_dev.h	Abstract base class interface for input buffered devices of utl
ostream_dev.h	Abstract base class interface for output devices of utl
out_dev.h	Abstract base class interface for output devices of utl
▼ meta
detection.h	Detection idiom based on WG21's N4502 [n4502 1] from Walter E. Brown
integral.h
invoke.h
meta.h	Include all meta library
operations.h	Integral constant operations and logical operations
selection.h	Template meta-programming type selections
sfinae.h	Template meta-programming SFINAE helpers
typelist.h	A template parameter "container"
useif.h	Template meta-programming SFINAE helpers
▼ utility
invoke.h	Invoke() and invoke traits implementation