Re: [PATCH v3] scsi: core: Add 'serial' sysfs attribute for SCSI/SATA

[Bart Van Assche]

On 2/9/26 1:21 PM, Igor Pylypiv wrote:
> Add a 'serial' sysfs attribute for SCSI and SATA devices. This attribute
> exposes the Unit Serial Number, which is derived from the Device
> Identification Vital Product Data (VPD) page 0x80.
>
> Whitespace is stripped from the retrieved serial number to handle
> the different alignment (right-aligned for SCSI, potentially
> left-aligned for SATA). As noted in SAT-5 10.5.3, "Although SPC-5 defines
> the PRODUCT SERIAL NUMBER field as right-aligned, ACS-5 does not require
> its SERIAL NUMBER field to be right-aligned. Therefore, right-alignment
> of the PRODUCT SERIAL NUMBER field for the translation is not assured."
>
> This attribute is used by tools such as lsblk to display the serial
> number of block devices.
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>