Problem with using Qt for industrial hardware's interface and Linux

[Momergil]

What do you consider a "very light version" of embedded Linux? Qt needs a framebuffer (linuxfb, directfb or similar) to be able to show its UI somewhere, as for the rest it really depends which parts of Qt functionality you need, surely a bunch of libraries will be needed as well.

Hello wysota and thanks for the reply!

By a "very light version" of embedded Linux, in practical terms, I mean to have a embedded Linux kernel that would only have the necessary to make the Qt application work, removing everything else that would only consume memory without being strictly needed. Now I know that to have such a thing probably would mean to edit the Linux kernel in accordance with the developed Qt-based interface software, which would undesirably consume time and money. So instead of editing the Linux kernel, one would prefer an already existing (and tested/validated by the community) light Linux kernel, that is, one that had removed from as many as features possible but would still be valid for running Qt applications (for example, considering what you told me, still having linuxfb, etc.).



Thanks,

Momergil

[wysota]

For embedded systems one usually wants to tailor the kernel to what is required by this particular system. You can start with some standard distro such as Yocto but sooner or later you will have to start modifying it by adding/removing features.