outw(9F)

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | CONTEXT | ATTRIBUTES | SEE ALSO

NAME

outb, outw, outl, repoutsb, repoutsw, repoutsd- write to an I/O port

SYNOPSIS

#include <sys/ddi.h>
 #include <sys/sunddi.h> 

voidoutb(intport, unsignedcharvalue);
void outw(intport, unsignedshortvalue);
void outl(intport, unsignedlongvalue);
void repoutsb(intport, unsignedchar*addr, intcount);
void repoutsw(intport, unsignedshort*addr, intcount);
voidrepoutsd(intport, unsignedlong*addr, intcount);

INTERFACE LEVEL

Solaris IA DDI specific (Solaris IA DDI).

PARAMETERS

port

A valid I/O port address.

value

The data to be written to the I/O port.

addr

The address of a buffer from which the values will be fetched.

count

The number of values to be written to the I/O port.

DESCRIPTION

These routines write data of various sizes to the I/O port with the address specified by port.

The outb(), outw(), and outl() functions write 8 bits, 16 bits, and 32 bits of data respectively, writing the data specified by value.

The repoutsb(), repoutsw(), and repoutsd() functions write multiple 8-bit, 16-bit, and 32-bit values, respectively. count specifies the number of values to be written. addr is a pointer to a buffer from which the output values are fetched.

CONTEXT

These functions may be called from user or interrupt context.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Architecture	IA

SEE ALSO

eisa(4), isa(4), attributes(5), inb(9F)

Writing Device Drivers

SunOS 5.8  Last Revised 1 Jan 1997

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | CONTEXT | ATTRIBUTES | SEE ALSO