Re: [PATCH v3 6/7] scsi: scsi_devinfo: add COMPAQ PD-1 multi-LUN ATAPI device quirk

[Damien Le Moal <dlemoal@kernel.org>]

On 4/27/26 4:09 AM, Phil Pemberton wrote:
> The COMPAQ PD-1 (OEM Panasonic/Matsushita LF-1195C) is a PD/CD combo
> drive that exposes two ATAPI LUNs: LUN 0 is a CD-ROM (TYPE_ROM),
> LUN 1 is a 650 MB PD (TYPE_DISK).
> 
> Add it to the SCSI device list with:
>   - BLIST_FORCELUN: tells the SCSI layer to scan past LUN 0
>   - BLIST_SINGLELUN: serialises commands across the two LUNs, since
>     the drive has a single transport and cannot handle concurrent
>     operations on both
>   - BLIST_NO_LUN_1F: the drive returns PQ=0/PDT=0x1f for unpopulated
>     LUNs instead of PQ=3; this flag tells scsi_probe_and_add_lun()
>     to silently skip them
> 
> The INQUIRY strings as reported by the device are:
>   Vendor:  "COMPAQ  " (T10 format, space-padded)
>   Product: "PD-1"
> 
> Signed-off-by: Phil Pemberton <philpem@philpem.me.uk>

Reviewed-by: Damien Le Moal <dlemoal@kernel.org>


-- 
Damien Le Moal
Western Digital Research