[PATCH] scsi: Adjust SCSI inquiry command data length

[Marek Vasut]

On 2/24/26 10:23 AM, Macpaul Lin (林智斌) wrote:

>> Thank you, and yes, I was about to point out that this is a scsi core
>> code, this applies to SCSI, USB and such devices.
> 
> After re-visit the specification of SCSI SPC-4, we have confirmed the
> standard inquiry (and the 1st) should not "less than" 36 bytes.
> 
> https://www.t10.org/members/w_spc4.htm
> (A summary of SCSI-1 could be found here in html format
> https://www.staff.uni-mainz.de/tacke/scsi/SCSI2-08.html#8.2.5 )
> 
> Compare the logic with the Linux's implementation in these sections:
> https://elixir.bootlin.com/linux/v6.19.3/source/drivers/scsi/scsi_scan.c#L690
> 
> https://elixir.bootlin.com/linux/v6.19.3/source/drivers/scsi/scsi_scan.c#L801
> https://elixir.bootlin.com/linux/v6.19.3/source/drivers/scsi/scsi_scan.c#L757
> 
> Unless the inquiry length has been assigned by the device, Linux use 36
> bytes as the default standard inquiry length.
> 
> Is it possible to update the implementation in u-boot to use 36 bytes
> as default standard inquiry lenght aligned with Linux, other devices
> should apply vendor specific inquiry length with quirk settings. Would
> it be okay? Looking forward for the further suggestions.
This would be OK, yes. Please update the commit message and send a V2. 
Thank you for investigating this.