[Lucid-LBM] SRU: Add backported qcserial driver [Maverick-RFC]

Tim Gardner tim.gardner at canonical.com
Mon Aug 2 14:05:57 UTC 2010

On 08/02/2010 07:33 AM, Stefan Bader wrote:
> On 08/02/2010 03:27 PM, Tim Gardner wrote:
>> On 07/31/2010 04:37 AM, Stefan Bader wrote:
>>> SRU justification:
>>> Impact: Certain models of 3G hardware (Gobi) which apparently are quite
>>> common, require several changes to work. First, the kernel module needs
>>> to be updated, which requires larger modifications. Second, a new firm-
>>> ware loader is required together with a matching udev rule.
>>> Fix: In order to prevent regressions, the driver backport was done in
>>> LBM and also adds a new binary subpackage (lbm-wwan). This package also
>>> contains the loader and the udev rule.
>>> NOTE! The drivers also requires firmware files which need to be manually
>>> gathered as they are not redistributable.
>>> Testcase: Without this backport no 3G connections are possible. Sevral
>>> users in the bug report had successfully used the driver from the test
>>> package after collecting the required firmware files.
>>> RFC Maverick:
>>> The kernel parts are already in Maverick. But the firmware loader and the
>>> udev rule would need to get packaged somewhere. I am not sure this still
>>> can be done in time, so maybe the userspace part would need to go into
>>> Maverick's LBM. Though it sounds a bit unclean.
>>> For future releases it would be valuable to evaluate whether the firmware
>>> might be acquired semi-automatically via fw-cutter.
>>> -Stefan
>>>   From f8de5aa33acc82fd77ac79e734f59f59b540f677 Mon Sep 17 00:00:00 2001
>>> From: Stefan Bader<stefan.bader at canonical.com>
>>> Date: Mon, 21 Jun 2010 18:40:57 +0200
>>> Subject: [PATCH] UBUNTU: Add WWAN sub-package and backported qcserial
>>> BugLink: http://bugs.launchpad.net/bugs/554099
>>> This adds a new sub-package which is intended to hold backported WWAN
>>> (wireless wide area network) modules. The start is made by a backported
>>> version of the qcserial driver.
>>> Signed-off-by: Stefan Bader<stefan.bader at canonical.com>
>>> ---
>> Acked-by: Tim Gardner<tim.gardner at canonical.com>  for Lucid
>> If there are no kernel components for Maverick, then perhaps the loader
>> and udev rule should just be a Universe package. Are you thinking about
>> doing it?
>> rtg
> Not yet really. I first wanted to see what options there would be. Would things
> like that fit into the linux-firmware package? Or is that restricted to only fw
> bits themselves?
> Is there still time to come up with a new package for Maverick? When the general
> opinion is to have a universe package (e.g. gobi-loader) I can do that.
> -Stefan

Currently linux-firmware is just the firmware bits. Given the 
non-redistributable nature of the Gobi firmware bits, I would not 
advocate adding loader and udev support to a package that is composed 
entirely of redistributable firmware.

For Maverick I think a universe package is the way to go. There is still 
about a week left to add a new package (before it gets really painful to 
do so).

Tim Gardner tim.gardner at canonical.com

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