The conscontrol utility is used to examine and modify the physical devices which back the virtual console devices. If no arguments (or only the list command) are specified, the current console settings are shown.
There are two types of logical consoles; a high level console which is represented by /dev/console, and a low level console. The low level console is used for kernel printf(9) and ddb(4) debugger support, while the high level console is used by user programs like syslogd(8). Multiple device support is implemented only for the low level console; the high level console is set to the first device in the console list.
Multiple console support may be invoked by passing the kernel the -D flag from the boot loader, or by using conscontrol to change the list of console devices after the system has booted.
The following options are available: