4.1 AVRDUDE Defaults

default_parallel = "default-parallel-device";

Assign the default parallel port device. Can be overridden using the ‘-P’ option.

default_serial = "default-serial-device";

Assign the default serial port device. Can be overridden using the ‘-P’ option.

default_linuxgpio = "default-linuxgpio-device";

Assign the default gpiochip for linuxgpio’s libgpiod mode, e.g. "gpiochip0". Ignored for linuxgpio’s sysfs mode. Can be overridden using the ‘-P’ option.

default_programmer = "default-programmer-id";

Assign the default programmer id. Can be overridden using the ‘-c’ option.

default_bitclock = "default-bitclock";

Assign the default bitclock value. Can be overridden using the ‘-B’ option.

allow_subshells = no;

Whether or not AVRDUDE’s interactive terminal is allowed to use subshell ! commands. This defaults to no for security reasons, e.g., in the rare case avrdude -t is set up with attached hardware to provide a web service, remote ssh or a login on a PC instead of a shell, say, for demo or training purposes. In almost all other cases this can be overridden in the personal avrddude.rc or .avrduderc configuration file with yes.

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