suse man page for scsi_device_lookup

SCSI_DEVICE_LOOKUP(9)						  SCSI mid layer					     SCSI_DEVICE_LOOKUP(9)

NAME
       scsi_device_lookup - find a device given the host

SYNOPSIS
       struct scsi_device * scsi_device_lookup(struct Scsi_Host * shost, uint channel, uint id, uint lun);

ARGUMENTS
       shost
	   SCSI host pointer

       channel
	   SCSI channel (zero if only one channel)

       id
	   SCSI target number (physical unit number)

       lun
	   SCSI Logical Unit Number

DESCRIPTION
       Looks up the scsi_device with the specified channel, id, lun for a given host. The returned scsi_device has an additional reference that
       needs to be released with scsi_device_put once you're done with it.

AUTHORS
       James Bottomley <James.Bottomley@hansenpartnership.com>
	   Author.

       Rob Landley <rob@landley.net>
	   Author.

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