scsi_vpd_lun_id — return a unique device identification


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


struct scsi_device * sdev

SCSI device

char * id

buffer for the identification

size_t id_len

length of the buffer


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.