i2o_block_transfer(9) centos man page | unix.com

I2O_BLOCK_TRANSFER(9)					       Message-based devices					     I2O_BLOCK_TRANSFER(9)

NAME
       i2o_block_transfer - Transfer a request to/from the I2O controller

SYNOPSIS
       int i2o_block_transfer(struct request * req);

ARGUMENTS
       req
	   the request which should be transferred

DESCRIPTION
       This function converts the request into a I2O message. The necessary DMA buffers are allocated and after everything is setup post the
       message to the I2O controller. No cleanup is done by this function. It is done on the interrupt side when the reply arrives.

       Return 0 on success or negative error code on failure.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     I2O_BLOCK_TRANSFER(9)