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SuSE 11.3 - man page for scsi_dma_map (suse section 9)

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SCSI_DMA_MAP(9) 			  SCSI mid layer			  SCSI_DMA_MAP(9)

NAME
       scsi_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.

COPYRIGHT
Kernel Hackers Manual 2.6.		    July 2010				  SCSI_DMA_MAP(9)
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