utx - UNIX terminal extension pseudo device
The utx pseudo device provides a communication mechanism between any server process and the terminal driver subsystem. More specifically, this pseudo device provides ioctl(2) and other I/O functions used by server daemons and kernel functions to communicate with the terminal driver subsystem.
Currently, the Asian terminal driver is using the utx driver to provide the following extended features: Kana-Kanji conversion (for Japanese only) Software on-demand font loading for user-defined characters Software phrase input method
Refer to atty(7) for more information about special features provided by the Asian terminal driver.
Files: utxd.conf(4), atty(7) delim off