Messages in this thread | | | Date | Wed, 7 May 2008 20:00:42 +0200 | From | Tino Keitel <> | Subject | Re: Hack to fix not working spindown over Firewire |
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On Wed, Apr 30, 2008 at 15:31:41 +0200, Stefan Richter wrote:
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> Tino, to find the firmware marker you can for example: > # echo 0x1000 > /sys/module/sbp2/parameters/workarounds > Then plug in the disk and > # dmesg | grep sbp2
I used firewire_sbp2. I hope that's ok.
firewire_sbp2: Please notify linux1394-devel@lists.sourceforge.net if you need the workarounds parameter for fw1.0 firewire_sbp2: Workarounds for fw1.0: 0x100 (firmware_revision 0x012804, model_id 0x000001) firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries)
[...]
> uninteresting for our purposes. According to the description of Active, > Idle, Standby, Sleep in RBC, we do most certainly want code 1 on resume, > and rather 3 than 2 on suspend. 5 instead of 3 or 2 might even be better
FYI, sg_start --pc=3 also spins down the drive here.
> from the POV of energy consumption but a "device reset may be required > before access to the device is allowed" which I'd rather not deal with. > > Tino, does the scsi stack log the device as "Direct-Access-RBC" after it > was plugged in?
Yes:
scsi 7:0:0:0: Direct-Access-RBC WDC WD32 00JB-00KFA0 PQ: 0 ANSI: 4
> > Note to self: Test sg_start --pc={1,3} with all the various SBP-2 > bridges I have access to...
Thanks for your effort.
Regards, Tino
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