Could not initialize SDL: Unable to initialize udev

[kamocat]

Hi Folks,

I'm trying to develop a UI on my Linux laptop, before migrating over to stm32.

I can compile and run the demos with framebuffer, but as I then have no keyboard or mouse input, I don't see how I would interact with the programs. (My laptop does not have a touchscreen).

So, I'm trying to use SDL2.

I have installed the 32-bit libraries. It seems to compile fine, aside from warnings like "skipping incompatible /usr/lib/libSDL2.so when searching for -lSDL2".

However, when I try to run it, I get

Quote

Unable to initialize SDL: Could not initialize UDEV

Is this a permissions issue? Or a udev issue?

I'm running arch linux 64-bit, if that helps.

[inmarket]

I can't answer the SDL questions but I have answers for the other aspects.

1. You can use the Linux event driver to get mouse/touch input when using framebuffer. Similarly I believe there is also a Linux tty keyboard driver.

2. You can use the X driver to provide display, mouse & keyboard. Although it is slower than framebuffer or SDL, for something being used for prototyping before moving to real hardware, it is ideal and much easier to get working than SDL.

[kamocat]

Thanks! 

Xorg seems to work fine.

I imagine that it's an issue with SDL on my computer - I don't think I have any other applications that use it.

[inmarket]

Great that you got it working