config.help

是关于linux2.5.1的完全源码

CONFIG_SERIO
  Say Yes here if you have any input device that uses serial I/O to
  communicate with the system. This includes the 
		* standard AT keyboard and PS/2 mouse *
  as well as serial mice, Sun keyboards, some joysticks and 6dof
  devices and more.

  If unsure, say Y.

  This driver is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called serio.o. If you want to compile it
  as a module, say M here and read <file:Documentation/modules.txt>.

CONFIG_SERIO_SERPORT
  Say Y here if you plan to use an input device (mouse, joystick,
  tablet, 6dof) that communicates over the RS232 serial (COM) port.
 
  More information is available: <file:Documentation/input/input.txt>

  If unsure, say Y.

  This driver is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called serport.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.