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

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

void outb(int port, unsigned char value);

void outw(int port, unsigned short value);

void outl(int port, unsigned long value);

The functions described here are obsolete. For the outb(), outw(), and outl() functions use, respectively, ddi_put8(9F), ddi_put16(9F), and ddi_put32(9F) instead. port value addr count 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.

These functions may be called from user, interrupt, or kernel context. See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

Architecture x86

Interface Stability Obsolete

isa (5), attributes (7), ddi_put16 (9F), ddi_put32 (9F), ddi_put8 (9F), inb (9F)

Writing Device Drivers