Message ID | E1UNUsv-00089n-7A@fourier |
---|---|
State | New |
Headers | show |
On 04/03/2013 02:06 PM, Kamal Mostafa wrote:
> git://kernel.ubuntu.com/kamal/ubuntu-quantal.git cypress-xps12-sru1103594
On Wed, Apr 03, 2013 at 02:06:21PM -0700, Kamal Mostafa wrote: > Bug reference: > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1103594 > Cypress Trackpad mis-detected as "PS/2 Cypress Trackpad" on XPS 12 > > [IMPACT] > > Due to a firmware change in the Cypress PS/2 trackpad, the driver fails > to properly detect the trackpad in the Dell XPS12 and possibly other models, > leaving the trackpad dysfunctional. > > This patch -- a trivial backport from upstream -- fixes the detection glitch > in the driver. The patch was cherry-picked into Raring. > > [TESTCASE] > > The patch was deployed as SAUCE in Raring some weeks ago, as well as in the > Sputnik kernel PPA for Q and P. It has been verified to fix the problem in > all three. > > [Regression Potential] > > Low potential for regression: The change will only affect Cypress PS/2 > trackpads (the problem and fix occur only after the trackpad has already been > detected as a Cypress), and it has been reasonably widely tested on Cypress > pads with the older firmware via the Sputnik PPA. > > Thanks, > > -Kamal Looks to be self contained and specific to a version of one piece of hardware. Appears reasonably well tested. Acked-by: Andy Whitcroft <apw@canonical.com> -apw