Transformed Driver Linux Embedded for imx28

[Memphis]

Hi all,
I'm working with the board imx28 with 7-inch display, however, my application should be rotated 90 degrees, but when i tried to export the export QWS_DISPLAY=Transformed:Rot90:0 i get the following response:

Transformed: Driver not found

how can I install the drivers? recompiling the kernel through the ltib?
I do not know where to start install the driver can anyone help me?
Thank You!

[SGaist]

Hi,

You need to enable it when configuring Qt 4

[Memphis]

I am not sure how to configure qt, directly on embedded linux? thank you

[SGaist]

Sorry, I wasn't precise enough. When configuring Qt before cross-compiling it

[admd91]

@SGaist
Hello, just to confirm, by configuring qt for embedded, the transformed driver will be built (as *.so file), and it can be added to a project via "Add External Library"?

Thanks

[SGaist]

You don't need to add it to your project, it will be used if you pass the corrected parameters when starting your application.

[admd91]

@SGaist

I am using Bitbake "meta-toolchain-qte" for my SDK, Qt Creator 3.3.0, for my IDE, and I downloaded Qt 4.8.5 libraries here: http://download.qt.io/archive/qt/4.8/4.8.5/qt-everywhere-opensource-src-4.8.5.tar.gz. I extracted the archive and configured Qt like this(note: I am running Ubuntu 12.04 64-bit, and my target is a 32-bit Freescale i.MX6Q SABRE SD:

./configure -embedded arm -prefix ./installdir -qt-gfx-transformed  -platform qws/linux-x86_64-g++ -xplatform qws/linux-arm-gnueabi-g++ -nomake examples -nomake demos -no-webkit -no-javascript-jit -nomake translations -little-endian -host-little-endian 

After doing make and make install, I opened Qt Creator and saw that a new qmake executable (64 bit) is available, so I made a new kit with the new qmake + SDK compiler from Bitbake meta-toolchain-qte. I added this to .pro file

QTPLUGIN += qgfxtransformed

And added this above my main() function in main.cpp

Q_IMPORT_PLUGIN(qgfxtransformed)

I built my application but got this error: error: expected constructor, destructor, or type conversion before '(' token

Do I have to build the gfxtransformed drivers manually, seeing that there are .pro files for the transformed drivers included in the Qt 4.8.5 archive, so that I can use them to rotate my GUI?

Apologies for replying to an old thread