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    DateFri, 15 Jul 2005 14:57:43 +0900
    FromAric Cyr <>
    SubjectRe: sata_sil 3112 activity LED patch
    On Fri, Jul 15, 2005 at 04:15:12AM +0200, Christian Kroll wrote:
    > I have tested the patch against my DawiControl DC-150 RAID controller
    > which is basically an add-on card with a SiI 3112 ASIC and a flash ROM.
    > The activity LED of my case is directly connected to the add-on card.
    > 
    > Unfortunately your patch doesn't have any effect on the LED. The
    > activity LED gets turned on by the card's BIOS at boot time and
    > continues to shine until I shut down the computer.
    > On the other hand it did not erase my Flash ROM and I haven't spotted
    > any data loss so far.
    
    No data loss is a good thing!  That was my biggest worry, as I have no
    documentation for the addon card case.  Out of curiosity, did the LED
    usage change at all before and after the patch, or was it totally
    unaffected.  I would guess the latter.
    
    Unfortunately, what documentation I do have shows (briefly) that add
    on cards implement their LED via a different mechanism.  If I knew the
    addresses for the flash read and write strobes (FL_RDN and FL_WRN), I
    might be able to work something out.  So as it stands, there is not
    much hope for the people with addon cards.
    
    > If you require more information, don't hesitate to contact me.
    
    Thanks, I will.  I have emailed Silicon Image in the (slim) chance
    that they will provide me with the information I require.  If they
    come through then I might be able to whip something up and have you
    test it.
    
    If anyone has any data on the 3112a (or 3512 as I believe they are
    register compatible) and isn't bound by an NDA, I'd like to hear from
    you.
    
    -- 
    Aric Cyr <acyr at alumni dot uwaterloo dot ca>    (http://acyr.net)
    gpg fingerprint: 943A 1549 47AC D766 B7F8  D551 6703 7142 C282 D542
    [unhandled content-type:application/pgp-signature]
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