udev 124, scsi_id on generics not working.

udev 124, scsi_id on generics not working.

[John Huttley]

Hi
scsi_id doesn't seem to like sg's any more.

scsi_id is working, as shown..

scsi_id --whitelisted --export --page=0x80 --device=/dev/sda
ID_VENDOR=ATA
ID_MODEL=WDC_WD1600BB-22G
ID_REVISION\b.0
ID_SERIAL=SATA_WDC_WD1600BB-22_WD-WCAL98082576
ID_SERIAL_SHORT=WD-WCAL98082576
ID_TYPE=disk



but try that on a generic..

gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg1
gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg2
gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg3


nothing.

sg1 is my autochanger, which is unfortunate, as it makes this rule not work:

# type 8 devices are "Medium Changers"
KERNEL="sg[0-9]*", SUBSYSTEMS="scsi", ATTRS{type}="8", 
IMPORT{program}="scsi_id --export --whitelisted -d $tempnode", 
SYMLINK+="tape/by-id/scsi-$env{ID_SERIAL}"


I know something has changed wrt to generics, perhaps the rule needs to 
be updated, and the docs as well.

Regards,

john

Re: udev 124, scsi_id on generics not working.

[Kay Sievers]

On Mon, Jul 7, 2008 at 02:25, John Huttley <John@mib-infotech.co.nz> wrote:
> scsi_id doesn't seem to like sg's any more.
>
> scsi_id is working, as shown..
>
> scsi_id --whitelisted --export --page=0x80 --device=/dev/sda
> ID_VENDOR=ATA
> ID_MODEL=WDC_WD1600BB-22G
> ID_REVISION\b.0
> ID_SERIAL=SATA_WDC_WD1600BB-22_WD-WCAL98082576
> ID_SERIAL_SHORT=WD-WCAL98082576
> ID_TYPE=disk
>
> but try that on a generic..
>
> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg1
> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg2
> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg3
>
>
> nothing.

Yep, that's a bug. The fallback to sgv3 is broken for sg devices, they
return ENOSYS, instead of EINVAL like sd is doing. I pushed a fix out.

In the meantime, adding:
   --sg-version=3
should work.

Thanks for letting us know,
Kay

Re: udev 124, scsi_id on generics not working.

[John Huttley]

That seems to have fixed it, thanks!

--john


Kay Sievers wrote:
> On Mon, Jul 7, 2008 at 02:25, John Huttley <John@mib-infotech.co.nz> wrote:
>> scsi_id doesn't seem to like sg's any more.
>>
>> scsi_id is working, as shown..
>>
>> scsi_id --whitelisted --export --page=0x80 --device=/dev/sda
>> ID_VENDOR=ATA
>> ID_MODEL=WDC_WD1600BB-22G
>> ID_REVISION\b.0
>> ID_SERIAL=SATA_WDC_WD1600BB-22_WD-WCAL98082576
>> ID_SERIAL_SHORT=WD-WCAL98082576
>> ID_TYPE=disk
>>
>> but try that on a generic..
>>
>> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg1
>> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg2
>> gatekeeper / # scsi_id --whitelisted --export --page=0x80 --device=/dev/sg3
>>
>>
>> nothing.
> 
> Yep, that's a bug. The fallback to sgv3 is broken for sg devices, they
> return ENOSYS, instead of EINVAL like sd is doing. I pushed a fix out.
> 
> In the meantime, adding:
>    --sg-version=3
> should work.
> 
> Thanks for letting us know,
> Kay
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