USB DisplayLink driver

[Vojtech Horky]

Implement a driver for a DisplayLink adapter pluggable into the HelenOS graphics stack.

Details

Although HelenOS has its own compositing server, the amount of supported graphical adapters is rather low. On PCs, the compositor still relies on kernel to properly initialize the GPU, on other platforms the support is even more rudimentary.

Implement a driver for a DisplayLink adapter that would be pluggable to the graphics stack and to the driver framework used in HelenOS and would allow the most common operations upon the adapter.

What Gains and Benefits will this bring?

Implementing a driver for graphical output over USB would allow to use HelenOS graphical interface on any platform with USB support. This would improve the experience when using HelenOS GUI in general. It would also open space for experiments with multi-monitor setup in HelenOS.

Difficulty

Medium

Required skills

A successful applicant will have good skills of programming in the C language and the ability to survive in a non-standard non-POSIX environment. Previous experience with driver or graphics stack implementation would be beneficial.

Documentation

• Developer documentation (graphics)
• Developer documentation (USB)
• GUI user's guide
• ​Announcement of the graphics stack at HelenOS mailing list
• ​lp:~petr-koupy/helenos/gui (original GUI branch)

Possible mentors

HelenOS Core Team, Vojtech Horky