config.help

是关于linux2.5.1的完全源码

CONFIG_PCMCIA_SERIAL_CS
  Say Y here to enable support for 16-bit PCMCIA serial devices,
  including serial port cards, modems, and the modem functions of
  multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
  credit-card size devices often used with laptops.)

  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 serial_cs.o.  If you want to compile it as
  a module, say M here and read <file:Documentation/modules.txt>.
  If unsure, say N.