opensolaris man page for ldi_aread

ldi_aread(9F)						   Kernel Functions for Drivers 					     ldi_aread(9F)

NAME
       ldi_aread, ldi_awrite - Issue an asynchronous read or write request to a device

SYNOPSIS
       #include <sys/sunldi.h>

       int ldi_aread(ldi_handle_t lh,  struct aio_req *aio_reqp, cred_t *cr);

       int  ldi_awrite(ldi_handle_t lh,  struct aio_req *aio_reqp, cred_t *cr);

PARAMETERS
       lh	    Layered handle.

       cr	    Pointer to a credential structure.

       aio_reqp     Pointer to the aio_req(9S) structure that describes where the data is to be stored or obtained from.

DESCRIPTION
       The  ldi_awrite()  function passes an asynchronous write request to a device entry point specified by the layered handle. This operation is
       supported for block and character devices.

       The ldi_aread() function passes an asynchronous read request to a device entry point specified by the layered  handle.  This  operation	is
       supported for block and character devices.

RETURN VALUES
       The  ldi_awrite()  and  ldi_aread() functions return 0 upon success. If a failure occurs before the request is passed on to the device, the
       possible return values are shown below. Otherwise any other error number may be returned by the device.

       EINVAL	  Invalid input parameters.

       ENOTSUP	  Operation is not supported for this device.

CONTEXT
       These functions may be called from user context.

SunOS 5.11							    3 June 2003 						     ldi_aread(9F)