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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

sdev
SCSI device

id

buffer for the identification

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

April 2019 Kernel Hackers Manual 4.9.