Manual Pages for UNIX Operating System command usage for man inl

Kernel Functions for Drivers                              inb(9F)



NAME
     inb, inw, inl, repinsb, repinsw, repinsd - read from an  I/O
     port

SYNOPSIS
     #include 
     #include 

     unsigned char inb(int port);


     unsigned short inw(int
     port);


     unsigned long inl(int port);


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


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


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


INTERFACE LEVEL
     The functions described here are obsolete.  For  the  inb(),
     inw(), and inl() functions, use, respectively, ddi_get8(9F),
     ddi_get8(9F),  and  ddi_get8(9F)  instead.  For   repinsb(),
     repinsw(),       andrepinsl(),       use,      respectively,
     ddi_rep_get8(9F),  ddi_rep_get8(9F),  and   ddi_rep_get8(9F)
     instead.

PARAMETERS
     port     A valid I/O port address.


     addr     The address of a buffer where the  values  will  be
              stored.


     count    The number of values to be read from the I/O port.


DESCRIPTION
     These routines read data of various sizes from the I/O  port
     with the address specified by port.



SunOS 5.11          Last change: 16 Jan 2006                    1






Kernel Functions for Drivers                              inb(9F)



     The inb(), inw(), and inl() functions read 8 bits, 16  bits,
     and  32  bits  of data respectively, returning the resulting
     values.


     The repinsb(), repinsw(), and repinsd() functions read  mul-
     tiple  8-bit, 16-bit, and 32-bit values, respectively. count
     specifies the number of values to be read. A  pointer  to  a
     buffer  will receive the input data; the buffer must be long
     enough to hold count values of the requested size.

RETURN VALUES
     The inb(), inw(), and inl() functions return the value  that
     was read from the I/O port.

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                         |
    |_____________________________|_____________________________|
    | Stability Level             |  Obsolete                   |
    |_____________________________|_____________________________|


SEE ALSO
     isa(4),    attributes(5),    ddi_get8(9F),     ddi_get8(9F),
     ddi_get8(9F),       ddi_rep_get8(9F),      ddi_rep_get8(9F),
     ddi_rep_get8(9F), outb(9F)


     Writing Device Drivers














SunOS 5.11          Last change: 16 Jan 2006                    2