.TH iowrite() "" "" "Internal Kernel Routine"
.PC "Write to I/O segment"
.B "#include <sys/io.h>"
\fBvoid iowrite(\fIiop\^\fB, \fIv\^\fB, \fIn\^\fB)\fR
\fBIO *\fIiop\^\fB; char *\fIv\^\fB; unsigned \fIn\^\fB;\fR
.PP
.B iowrite()
writes \fIn\fR bytes from address \fIv\fR in the kernel's data segment
to the I/O segment referenced by \fIiop\fR.
If an address fault occurs,
.B iowrite()
calls
.B set_user_error()
with
.BR EFAULT .
.SH "See Also"
.B
internal kernel routines
.R
