Messages in this thread | | | From | Jarod Wilson <> | Subject | Re: [PATCH RFT 7/7] firewire: sbp2: add workarounds for 2nd and 3rd generation iPods | Date | Wed, 28 Jan 2009 22:18:42 -0500 |
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On Wednesday 28 January 2009 18:11:32 Stefan Richter wrote: > Jarod Wilson wrote: > > On Saturday 24 January 2009 13:46:44 Stefan Richter wrote: > >> - Do 2nd and 3rd gen. iPods actually have a model_id == 0, or do they > >> have in fact no model_id at all? > > > > So far as I can decipher (using Kristian's csr-dump utility), they really > > do have model_id == 0. > > If model_id weren't there, the older ieee1394/sbp2 driver would log > model_id 0 (and match against quirks list entries with ID 0), while > firewire-sbp2 logs model_id 0xff000000 (which is an impossible value and > thus indicates to those who want to write a new quirks list entry that > there is actually no model_id...). I will soon push the patch which > makes sbp2 behave like firewire-sbp2 in this regard, to eliminate a > potential source of conflicting user reports.
Okay, so yeah, they definitely both have model_id == 0.
firewire_sbp2: Workarounds for fw2.0: 0x48 (firmware_revision 0x0a2700, model_id 0x000000).
On a related note... The fix capacity workaround... I think I need to observe this failure myself... My own 4th-gen ipod, when connected to a Mac OS X system, reports the exact capacity I get if the fix capacity workaround is disabled. Do they just know not to try to access that last block, or is the need for this workaround a myth? :)
-- Jarod Wilson jarod@redhat.com
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