Name
console — Output console device and options.
Options
-
tty
n
-
Use the virtual console device
n
.
-
ttyS
n
[,
options
],
ttyUSB0[,
options
],
-
Use the specified serial port. The options are of the form
bbbbpnf
, where
bbbb
is the baud rate,
p
is parity (n,
o, or e),
n
is number of bits, and
f
is flow control (r
for RTS or omitted). Default is 9600n8.
See the file
Documentation/serial-console.txt for more
information on how to use a serial console. If you wish to have
access to the kernel console information and do not have a serial
port, see the netconsole command-line option.
-
uart,io,
addr
[,
options
],
uart,mmio,
addr
[,
options
],
-
Start an early, polled-mode console on the 8250/16550 UART at the
specified I/O port or MMIO address, switching to the specified
ttyS device later. The options are the same as for ttyS
shown earlier.