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authorSamo Pogacnik <samo_pogacnik@t-2.net>2010-08-25 20:44:07 +0200
committerStephen Rothwell <sfr@canb.auug.org.au>2010-09-15 10:56:31 +1000
commit62955959485e1217a28742abad526387542ad7f1 (patch)
treee6f7131fdc3d03fa5a1d30809d346751ac01e1c6 /Documentation
parent94a056c0c62a52798a951b5a23604928b4f768ee (diff)
add ttyprintk driver
Ttyprintk is a pseudo TTY driver, which allows users to make printk messages, via output to ttyprintk device. It is possible to store "console" messages inline with kernel messages for better analyses of the boot process, for example. Signed-off-by: Samo Pogacnik <samo_pogacnik@t-2.net> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devices.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devices.txt b/Documentation/devices.txt
index d0d1df6cb5de..6a08fd731d28 100644
--- a/Documentation/devices.txt
+++ b/Documentation/devices.txt
@@ -239,6 +239,7 @@ Your cooperation is appreciated.
0 = /dev/tty Current TTY device
1 = /dev/console System console
2 = /dev/ptmx PTY master multiplex
+ 3 = /dev/ttyprintk User messages via printk TTY device
64 = /dev/cua0 Callout device for ttyS0
...
255 = /dev/cua191 Callout device for ttyS191