Manual Pages for UNIX Operating System command usage for man outw

Kernel Functions for Drivers                             outb(9F)



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

SYNOPSIS
     #include 
     #include 

     void outb(int port, unsigned char value);


     void outw(int port, unsigned short value);


     void outl(int port, unsigned long value);


     void repoutsb(int port, unsigned char *addr, int count);


     void repoutsw(int port, unsigned short *addr, int count);


     void repoutsd(int port, unsigned long *addr, int count);


INTERFACE LEVEL
     The functions described here are obsolete. For  the  outb(),
     outw(),    and    outl()    functions   use,   respectively,
     ddi_put8(9F), ddi_put8(9F), and  ddi_put8(9F)  instead.  For
     repoutsb(),  repoutsw(),  andrepoutsl(),  use, respectively,
     ddi_rep_put8(9F),  ddi_rep_put8(9F),  and   ddi_rep_put8(9F)
     instead.

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.




SunOS 5.11          Last change: 16 Jan 2006                    1






Kernel Functions for Drivers                             outb(9F)



     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, interrupt, or  ker-
     nel context.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Architecture                | x86                         |
    |_____________________________|_____________________________|
    | Interface Stability         | Obsolete                    |
    |_____________________________|_____________________________|


SEE ALSO
     isa(4),    attributes(5),    ddi_put8(9F),     ddi_put8(9F),
     ddi_put8(9F),       ddi_rep_put8(9F),      ddi_rep_put8(9F),
     ddi_rep_put8(9F), inb(9F)


     Writing Device Drivers


















SunOS 5.11          Last change: 16 Jan 2006                    2