handling plugin events?

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

Does NetBSD have an official way to trigger tasks to handle various 
devices being plugged in?

Examples:

- when I insert a flash memory card (I am using sdmmc but not committed 
yet), I'd like 1) the MSDOS file system to be mounted and 2) a popup 
window (if in X11) to show it. (That popup window could be a image viewer; 
or some tool to download, preview, and erase images; or a simple file 
manager with image preview would be good enough.)

- insert a PCMCIA broadband card and pppd automatically run with the 
correct configuration -- or if in X11 have a pop-up window asking if you 
want to enable that networking.

- plug in a USB scanner: open xsane or other scanner software

- plug in a USB disk, mount the file system to be mounted and (if in 
X11) popup a file manager pointing to it.

- CD inserted: if has file system, mount it and (if in X11) open a file 
manager. If has audio tracks first, then if in X11, open a CD player 
application.

- DVD inserted: if has file system, mount it and (if in X11) open a file 
manager. If it is a video, then if in X11, open a DVD player application.

What technologies does NetBSD have to accomplish this? Or what has been 
proposed for this?