[PATCH 0/3] Input: wacom - add support for new LCD tablets

Stefan Bader stefan.bader at canonical.com
Mon Mar 1 19:09:17 UTC 2010

Chase Douglas wrote:
> On Mon, 2010-03-01 at 18:22 +0000, Andy Whitcroft wrote:
>> On Mon, Mar 01, 2010 at 01:08:09PM -0500, Chase Douglas wrote:
>>> The following three patches provide support for new wacom tablet devices. The
>>> patches were included in 2.6.33. I have built a test kernel module for bug
>>> 516777, and the module tested well on one new 0xE3 device and two older wacom
>>> devices without any regression.
>>> I will be working with the upstream maintainer of the driver in an attempt to
>>> get the changes queued upstream for the -stable tree. In the meantime, I
>>> believe these changes can be merged into the Lucid kernel as they can be tested
>>> and removed before release if necessary.
>> This patch set is pretty big which is unsettling, but it I assume is
>> taking us to what is in .33?  I know we already have bugs asking for
>> this support.  So I am inclined to pull it in and see what happens
>> before beta-1.

This would be my feeling as well. There is a chance that this will not get
accepted to upstream stable because it is big. But on the other hand we got at
least two different tablets tested to be still working and a completely new type
as actually enabled by the change. And it is isolated to this one driver.
So lets rather add it now and have time to remove the changes if we find out we
got regressions in beta.


> It doesn't take us all the way to .33 for this particular driver, but
> pretty close. There are essentially just two more commits beyond these
> three that are in .33 [1] [2]. The first is merely code cleanup
> replacing hardcoded ints with #defines. The second looks to be a
> potential bug fix to separate out events that are reported in the same
> data packet. It inserts a sync event between two different event reports
> to distinguish them. If we see issues where people try to use
> expresskeys and pens at the same time and they have issues then the
> commit could fix it.
> [1]
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=cad7470084686d876ebfecf55a9ce039075f9134
> [2]
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=0f5e182dff576e6f3cd9b805834f18d11f2882aa

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