There is no manual for fuse. Why?
[@desktop /usr/src ] man fuse
No manual entry for fuse
[@desktop /usr/src ] man fuse.ko
No manual entry for fuse.ko
[@desktop /usr/src ] man fusefs
No manual entry for fusefs
[@desktop /usr/src ] apropos fuse
fuser(1) - list IDs of all processes that have one or more files open
mount_fusefs(8) - mount a Fuse file system daemon
dtrace_tcp(4) - a DTrace provider for tracing events related to the tcp 4 protocol
fma, fmaf, fmal(3) - fused multiply-add
blackhole(4) - a sysctl 8 MIB for manipulating behaviour in respect of refused SCTP, TCP, or UDP connection attempts
nologin(8) - politely refuse a login
desktop /usr/src ] find . -type f -name "fuse*"
Why? Because pretty much everything is covered by mount_fusefs(8). smbfs and unionfs are in the same boat. But it would be nice to add a fusefs(5) man page too.