[SRU[[Trusty] Synaptics HID touchpad driver

[Brad Figg]

On 04/23/2014 07:56 AM, Tim Gardner wrote:
> On 04/23/2014 12:59 AM, AceLan Kao wrote:
>> SRU JUSTIFICATION
>>
>> BugLink: https://bugs.launchpad.net/bugs/1305522
>>
>> IMPACT: The Synaptics touchpad with i2c interface doesn't work well
>> after kernel starting supporting i2c-hid device. And the solution
>> currently we provided is to blacklist i2c_hid driver and let the
>> touchpad fallback to use PS/2 interface.
>>
>> FIX: Synaptics already submitted patches to upstream and will be
>> merged into kernel v3.6. I cherry-picked the essential patch set from
>>     git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git rmi4
>> The touchpad supports multi-touch up to 4 fingers(the most I can
>> verified) after applying those patches.
>>
>> TEST: I have built a kernel for test and it works on a Dell laptop
>> with Synaptics i2c touchpad I have on hands.
>>     http://people.canonical.com/~acelan/bugs/lp1305522/
>>
>> git://kernel.ubuntu.com/acelan/ubuntu-trusty.git rmi4
>>
> 
> So, the first 5 patches are actually upstream cherry-picks from 3.15-rc1. Though large, they are mostly mechanical. The last 2 patches, which introduce a new driver, can be cherry-picked from linux-next.
> 
> I'm sure there can't _possibly_ be any bugs in merge window patches, but I'd feel better if there was some information in the LP report that indicates you've at least done a little regression testing.
> 
> rtg

AceLan,

I'm in total agreement with Tim here. You folks should all be doing more
regression testing of the patches you send to us.

Brad
-- 
Brad Figg brad.figg at canonical.com http://www.canonical.com