Here is a list of all documented files with brief descriptions:

[detail level 1234]

► build-bionic
► meson-private
sanitycheckc.c
config.h
► build-clang
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-debian
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-gcc
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-no-uring
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-ppc
► meson-private
sanitycheckc.c
config.h
► build-qubuntu
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-rocky8
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-test
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► build-ubuntu
► meson-private
sanitycheckc.c
fuse_config.h
libfuse_config.h
► example
cuse.c
cuse_client.c
hello.c
hello_ll.c
hello_ll_uds.c
invalidate_path.c
ioctl.c
ioctl.h
ioctl_client.c
notify_inval_entry.c
notify_inval_inode.c
notify_store_retrieve.c
null.c
passthrough.c
passthrough_fh.c
passthrough_helpers.h
passthrough_ll.c
poll.c
poll_client.c
printcap.c
► fuse-3.17.4
► example
cuse.c
cuse_client.c
hello.c
hello_ll.c
hello_ll_uds.c
invalidate_path.c
ioctl.c
ioctl.h
ioctl_client.c
notify_inval_entry.c
notify_inval_inode.c
notify_store_retrieve.c
null.c
passthrough.c
passthrough_fh.c
passthrough_helpers.h
passthrough_ll.c
poll.c
poll_client.c
printcap.c
► include
cuse_lowlevel.h
fuse.h
fuse_common.h
fuse_kernel.h
fuse_log.h
fuse_lowlevel.h
fuse_mount_compat.h
fuse_opt.h
► lib
► modules
iconv.c
subdir.c
buffer.c
compat.c
cuse_lowlevel.c
fuse.c
fuse_i.h
fuse_log.c
fuse_loop.c
fuse_loop_mt.c
fuse_lowlevel.c
fuse_misc.h
fuse_opt.c
fuse_signals.c
helper.c
mount.c
mount_bsd.c
mount_util.c
mount_util.h
util.c
util.h
► test
hello.c
readdir_inode.c
release_unlink_race.c
stracedecode.c
test_abi.c
test_setattr.c
test_syscalls.c
test_want_conversion.c
test_write_cache.c
wrong_command.c
► util
fusermount.c
mount.fuse.c
► include
cuse_lowlevel.h
fuse.h
fuse_common.h
fuse_kernel.h
fuse_log.h
fuse_lowlevel.h
fuse_mount_compat.h
fuse_opt.h
► lib
► modules
iconv.c
subdir.c
buffer.c
compat.c
cuse_lowlevel.c
fuse.c
fuse_i.h
fuse_log.c
fuse_loop.c
fuse_loop_mt.c
fuse_lowlevel.c
fuse_misc.h
fuse_opt.c
fuse_signals.c
fuse_uring.c
fuse_uring_i.h
helper.c
mount.c
mount_bsd.c
mount_util.c
mount_util.h
usdt.h
util.c
util.h
► libfuse.git.310
► build
► meson-private
sanitycheckc.c
config.h
► test
hello.c
readdir_inode.c
release_unlink_race.c
stracedecode.c
test_abi.c
test_init.c
test_setattr.c
test_signals.c
test_syscalls.c
test_want_conversion.c
test_write_cache.c
wrong_command.c
► util
fusermount.c
mount.fuse.c