.TH sem "" "" "Kernel Module"
.PC "Kernel module for semaphores"
.PP
.II "kernel^semaphores"
.II "interprocess communication"
The kernel module
.B sem
enables System V-style semaphores.
It is called a
.I "kernel module"
because you can link it into your kernel or exclude it, as you wish, just
like a device driver;
yet it is not a true device devicer because it does not perform I/O with
a peripheral device.
.SH "See Also"
.Xr "device drivers," device_dr
.Xr "kernel," kernel
.Xr "semctl()" semctl
