Device handling

Modules
	Block devices
	Block device functions.
	Braille devices
	Braille displays functions.
	Framebuffer devices
	Scan framebuffer devices.
	Floppy devices
	This should currently be called *before* scan_misc() so we can try to get the floppy controller resources in scan_misc() by actually accessing the floppy drive.
	Input devices
	Input device scan functions.
	ISDN devices
	ISDN identify functions.
	Keyboard devices
	Keyboard device functions.
	Modem devices
	Modem detection functions.
	Mouse devices
	Mouse detection.
	Network devices
	Network device scan functions.
	Parallel port devices
	Parallel port device information.
	PPPoE devices (DSL)
	PPPoE devices scan functions.
	Serial devices
	Serial device interface.
	WLAN devices
	WLAN device functions.