On 2024-09-05, Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: >> $ cat /proc/consoles >> ttyS0 -W- (EC N a) 4:64 >> >> The 'N' shows that it is an NBCON console. >> >> There will also be a dedicated printing kthread. For example: >> >> $ ps ax | grep pr/ >> 16 root 0:00 [pr/ttyS0] > > Wondering if this can use the DEVNAME instead of opaque (to some extent) ttySx? > Or is it using the same what has been passed to the console= kernel command line > parameter? fs/proc/consoles.c:show_console_dev() is just using: "%s%d", con->name, con->index The same goes for drivers/tty/tty_io.c:show_cons_active(), which is responsible for the contents of: /sys/devices/virtual/tty/console/active John Ogness
