mirror of
https://github.com/torvalds/linux.git
synced 2024-12-13 14:43:03 +00:00
fbc92a3455
tty: add 'active' sysfs attribute to tty0 and console device Userspace can query the actual virtual console, and the configured console devices behind /dev/tt0 and /dev/console. The last entry in the list of devices is the active device, analog to the console= kernel command line option. The attribute supports poll(), which is raised when the virtual console is changed or /dev/console is reconfigured. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> index 0000000..b138b66
20 lines
584 B
Plaintext
20 lines
584 B
Plaintext
What: /sys/class/tty/console/active
|
|
Date: Nov 2010
|
|
Contact: Kay Sievers <kay.sievers@vrfy.org>
|
|
Description:
|
|
Shows the list of currently configured
|
|
console devices, like 'tty1 ttyS0'.
|
|
The last entry in the file is the active
|
|
device connected to /dev/console.
|
|
The file supports poll() to detect virtual
|
|
console switches.
|
|
|
|
What: /sys/class/tty/tty0/active
|
|
Date: Nov 2010
|
|
Contact: Kay Sievers <kay.sievers@vrfy.org>
|
|
Description:
|
|
Shows the currently active virtual console
|
|
device, like 'tty1'.
|
|
The file supports poll() to detect virtual
|
|
console switches.
|