RHCE - Part 1

Miscellaneus Devices

• Serial Ports
  • Compiled into Kernel. Up to 32 ports
  • HW Details and line settings in /proc/tty/driver/serial
  • Settings modifiable with /bin/setserial
  • During startup, /etc/rc.serial ets this up
  • Applications tend to point to /dev/modem, /dev/pilot, ...
  • Kernel can be configured to use a serial port as the console with boot parameter:
    console=ttyS0 (or ttyS1...)
  • More info on /usr/src/kernel/Documentation/serial-conole.txt
• Parallel Pots
  • Compiled as Kernel module
  • Platform-specific support established with alias parport_lowlevel inm /etc/modules.conf
  • For x86, the right module is parport_pc
  • Low-level configuration (IRQ, ioports...) set up with load-time parameters to parport_pc
• Others
  • PS/2 devices, IDE CD-ROMs, SCSI CD-ROMs, old CD-ROMs...
  • Check /proc/ for detailed information