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inb (9)
  • inb (2) ( Русские man: Системные вызовы )
  • inb (2) ( Linux man: Системные вызовы )
  • >> inb (9) ( Solaris man: Ядро )
  •  

    NAME

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

    SYNOPSIS

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

    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 multiple 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 kernel context.  

    ATTRIBUTES

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

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Architecturex86

    Stability Level

     

    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


     

    Index

    NAME
    SYNOPSIS
    INTERFACE LEVEL
    PARAMETERS
    DESCRIPTION
    RETURN VALUES
    CONTEXT
    ATTRIBUTES
    SEE ALSO


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