---
name: "scsi_dma_map"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/scsi_dma_map"
---

# scsi\_dma\_map(9)

perform DMA mapping against command's sg lists

## 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