If I wrote a Raw Input driver for Allegro 5, would that be something that we'd consider merging into the mainline?

I know install_mouse() takes void, so I'm not sure how you'd request the feature. Maybe something similar to requesting features from an allegro display?

Also, as for "that's Windows only", I'm pretty sure Linux also supports raw input.

For those who don't know, Raw Input basically means, bypassing the normal driver so you can access multiple mice, and/or multiple keyboards at the same time for multiplayer games.