SCSI_DMA_MAP(9) SCSI mid layer SCSI_DMA_MAP(9)NAMEscsi_dma_map - perform DMA mapping against command´s sg lists
SYNOPSIS
int scsi_dma_map(struct scsi_cmnd * cmd);
ARGUMENTS
cmd
scsi command
DESCRIPTION
Returns the number of sg lists actually used, zero if the sg lists is
NULL, or -ENOMEM if the mapping failed.
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 SCSI_DMA_MAP(9)