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14.3.21. Kernel Configuration for PCMCIA

Which kernel configuration options are relevant to support PCMCIA cards under Linux?

The following kernel configuration options are required to support miscellaneous PCMCIA card types with Linux and the PCMCIA CS package:
  • PCMCIA IDE cards (CF and true-IDE)
    To support the IDE CardService client, the kernel has to be configured with general ATA IDE support. The MPC8xx IDE support (CONFIG_BLK_DEV_MPC8XX_IDE flag) must be turned off.
  • PCMCIA modem cards
    The kernel has to be configured with standard serial port support (CONFIG_SERIAL flag). After the kernel bootup the following preparation is needed:
    bash# mknod /dev/ttySp0 c 240 64
    This creates a new special device for the modem card; please note that /dev/ttyS0 ... S4 and TTY_MAJOR 4 are already used by the standard 8xx UART driver). /dev/ttySp0 becomes available for use as soon as the CardServices detect and initialize the PCMCIA modem card.
  • PCMCIA Wireless LAN cards
    Enable the "Network device support" --> "Wireless LAN (non-hamradio)" --> "Wireless LAN (non-hamradio)" option in the kernel configuration (CONFIG_NET_RADIO flag).

14.3.20. Adding Files to Ramdisk is Non Persistent 1. Abstract 14.3.22. Configure Linux for PCMCIA Cards using the Card Services package
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