1What: /sys/class/tty/console/active 2Date: Nov 2010 3Contact: Kay Sievers <kay.sievers@vrfy.org> 4Description: 5 Shows the list of currently configured 6 console devices, like 'tty1 ttyS0'. 7 The last entry in the file is the active 8 device connected to /dev/console. 9 The file supports poll() to detect virtual 10 console switches. 11 12What: /sys/class/tty/tty0/active 13Date: Nov 2010 14Contact: Kay Sievers <kay.sievers@vrfy.org> 15Description: 16 Shows the currently active virtual console 17 device, like 'tty1'. 18 The file supports poll() to detect virtual 19 console switches. 20 21What: /sys/class/tty/ttyS0/uartclk 22Date: Sep 2012 23Contact: Tomas Hlavacek <tmshlvck@gmail.com> 24Description: 25 Shows the current uartclk value associated with the 26 UART port in serial_core, that is bound to TTY like ttyS0. 27 uartclk = 16 * baud_base 28 29