Enables compatibility of NUS for codebases that are not
Bluetooth-centric (e.g: Non-bluetooth samples that use UART over
Bluetooth LE for Console, Logging, Shell, others).
Signed-off-by: Luis Ubieda <luisf@croxel.com>
Enables usage Bluetooth LE GATT as a serial endpoint to exchange data
using UART APIs. This implementation is compatible with UART Interrupt
Driven APIs and uses the nus-uart device-tree node properties to
configure FIFO buffers for transmitting and receiving. Defining
multiple instances of the driver is possible and it allows implementing
multiple GATT NUS service instances to exchange data as separate serial
endpoints.
Signed-off-by: Luis Ubieda <luisf@croxel.com>
NUS is implemented as a Bluetooth LE service, exchanging data treating
the NUS characteristics as Serial endpoints: RX characteristic to
receive, TX characteristic to send binary packets.
This implementation also enables the ability to define multiple
instances of the NUS Service, analogous to mutliple serial endpoints,
to use each one for different purposes. Unless disabled through Kconfig,
NUS instantiates a default instance, similar to what other services do,
which allows users not interested in using multiple instances, to not
worry about the inherent complexities.
Signed-off-by: Luis Ubieda <luisf@croxel.com>
