Here is a list of all files with brief descriptions:

[detail level 123456]

doc
_doxygen
drivers
display
display_sipomux.c	Driver of the SIPO/MUX Display controller
gpio
gpio_pca9554_regrst.c	Driver for an PCA9554 I2C-based GPIO controller (w/regrst)
gpio_pca9555_regrst.c	Driver for an PCA9555 I2C-based GPIO controller (w/regrst)
gpio_sc16is75x.c	Driver for the GPIO controller part of an SC16IS75x bridge
gpio_sc18is604.c	Driver for the GPIO controller part of an SC18IM604 bridge
gpio_sipomux.c	Driver of the SIPO/MUX GPIO controller
i2c
i2c_sc18is604.c	Driver for the I2C controller part of an SC18IM604 bridge
i2c_sc18is604.h	Driver Interface for the I2C controller part of an SC18IM604 bridge
i2c_sc18is604_callback.c	Driver Callback for the I2C controller part of an SC18IM604 bridge
mfd
sc18is604
mfd_sc18is604.c	MFD Driver for an SC18IM604 bridge
mfd_sc18is604.h	MFD Driver Interface for an SC18IM604 bridge
mfd_sc18is604_emul.c
mfd_sc18is604_transfer.c	MFD Bus Transfer Driver for an SC18IM604 bridge
mfd_sc18is604_transfer_async.c	MFD Bus Transfer Driver Callbacks for an SC18IM604 bridge
mfd_sc16is75x.c	MFD Driver for an SC16IS75X bridge
mfd_sc16is75x.h	MFD Driver Interface for an SC16IS75X bridge
mfd_sc16is75x_async.c	MFD Bus Transfer Driver Callbacks for an SC16IS75X bridge
mfd_sc16is75x_i2c.c	MFD I2C-Bus Transfer Driver for an SC16IS75X bridge
mfd_sc16is75x_spi.c	MFD SPI-Bus Transfer Driver for an SC16IS75X bridge
mfd_sipomuxgp.c	MFD Driver for an SIPO/MUX GP matrix controller
mfd_sipomuxgp.h	MFD Driver Interface for an SIPO/MUX GP matrix controller
mfd_sipomuxgp_spi.c	MFD SPI-Bus Transfer Driver for an SIPO/MUX GP matrix controller
mfd_sipomuxgp_spi.h	MFD SPI-Bus Transfer Driver Interface for an SIPO/MUX GP matrix controller
mfd_sipomuxgp_workq.c	MFD Driver Worker Queue for an SIPO/MUX GP matrix controller
sensor
sensortek
stk8ba58
stk8ba58.c	Driver for an STK8BA58 I2C-based 3-axis accelerometer
stk8ba58.h	Driver Interface for an STK8BA58 I2C-based 3-axis accelerometer
stk8ba58_reg.c	I2C-Bus Access for an STK8BA58
stk8ba58_reg.h	I2C-Bus Access Interface for an STK8BA58
stk8ba58_trigger.c	Driver Callback for the STK8BA58 3-axis accelerometer
serial
uart_sc16is75x.c	Driver for the UART part of an SC16IS75x bridge
include
bridle
dt-bindings
seeed_grove_pwms_defaults.h
core.h	Public Bridle APIs
core_includes.h	Header files included by bridle/core.h
core_version.h	Public Bridle Version API
zephyr
drivers
mfd
sc16is75x.h	MFD Interface for an SC16IS75X bridge
sc18is604.h	MFD Interface for an SC18IM604 bridge
sc18is604_emul.h
sipomuxgp.h	MFD Interface for an SIPO/MUX GP matrix controller
dt-bindings
sensor
stk8ba58.h	STK8BA58 Power Mode and Output Data Rate definitions
lib
bridle
version.c	Bridle Version API implementation
subsys
shell
modules
bridle_service.c
cmd_hello.c
tests
bridle
common
src
main.c
drivers
gpio
sc18is604
src
main.c
i2c
sc18is604
src
main.c
shields
grove
dts_bindings
src
main.c
grove_btn
dts_bindings
src
main.c
grove_led
dts_bindings
src
main.c
x_grove_testbed
dts_bindings
src
main.c
snippets
usb-console
build_all
src
main.c