| 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¶
| June 2024 | Kernel Hackers Manual 3.10 |