Kernel Functions for Drivers                         geterror(9F)



NAME
     geterror - return I/O error

SYNOPSIS
     #include 
     #include 
     #include 



     int geterror(struct buf *bp);


INTERFACE LEVEL
     Architecture independent level 1 (DI/DKI).

PARAMETERS
     bp    Pointer to a buf(9S) structure.


DESCRIPTION
     The geterror() function returns the error number   from  the
     error field of the  buffer header structure.

RETURN VALUES
     An error number indicating the error condition  of  the  I/O
     request  is  returned. If the I/O request completes success-
     fully, 0 is returned.

CONTEXT
     The geterror() function can be called from user,  interrupt,
     or kernel context.

SEE ALSO
     buf(9S)


     Writing Device Drivers

















SunOS 5.11          Last change: 16 Jan 2006                    1