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SCSI_VPD_LUN_ID(9) SCSI mid layer SCSI_VPD_LUN_ID(9)

NAME

scsi_vpd_lun_id - return a unique device identification

SYNOPSIS

int scsi_vpd_lun_id(struct scsi_device * sdev, char * id, size_t id_len);

ARGUMENTS

struct scsi_device * sdev
SCSI device

char * id

buffer for the identification

size_t id_len

length of the buffer

DESCRIPTION

Copies a unique device identification into id based on the information in the VPD page 0x83 of the device. The string will be formatted as a SCSI name string.

Returns the length of the identification or error on failure. If the identifier is longer than the supplied buffer the actual identifier length is returned and the buffer is not zero-padded.

AUTHORS

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

Rob Landley <rob@landley.net>

Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12