22 - Disable Serial, TTY and TPM

Summary

This fragment disables serial communication interfaces, traditional TTY subsystems, and Trusted Platform Module support. These are unneeded on secure, self-contained systems.

Configuration breakdown

TTY and serial devices

CONFIG_SERIAL_8250
CONFIG_TTY
CONFIG_VT
  • Disables standard 8250 UART serial support.

  • Disables generic TTY subsystem.

  • Disables virtual terminal support.

Trusted computing

CONFIG_TCG_TPM
  • Disables TPM (Trusted Platform Module) support.

Where to find a cfg sample

22-Config-No-Serial-TTY-TPM.cfg