5.4 and USB keyboard support

I'm having trouble with a Belkin KVM switch that provides keyboard/mouse 
to each server with one USB cable. On 5.3-R this is completely broken, 
on 5.3-STABLE is seems to work OK when booting from a harddrive. When 
PXE booting I don't get any keyboard until i disconnect/reconnect the 
USB cable, then I get a US keyboard layout not the Swedish that I have 
specified in rc.conf.

I haven't tested if USB keybord works when booting from a recent 
snapshot-CD. I'll try to find a separate USB keyboard mouse so I don't 
have to stand in front of noisy 1U servers to debug this.

Can we put this issue on the 5.4 todo so that it gets tested on more 
keyb/KVM/motherbord-BIOS combinations than I have here.

/Martin