From 30528be5fca26decf1444b7b03f2ad50ac9b51b2 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 5 Jul 2007 18:02:01 +0200 Subject: svn_rev_524 --- Documentation/console.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 Documentation/console.txt (limited to 'Documentation') diff --git a/Documentation/console.txt b/Documentation/console.txt new file mode 100644 index 0000000000..7ed67202e4 --- /dev/null +++ b/Documentation/console.txt @@ -0,0 +1,13 @@ +-------------- U-Boot consoles ------------------ + +U-Boot supports multiple consoles which may be simultaneously active. +Depending on the configuration none, the first or all consoles are +activated on startup, see CONSOLE_ACTIVATE_FIRST and CONSOLE_ACTIVATE_ALL +options. + +During runtime the behaviour of the consoles can be controlled with the +'active' parameter each console has. The console system recognizes three +characters: 'i' for stdin, 'o' for stdout and 'e' for stderr. These options +may be concatenated together as needed, so setting an 'active' parameter +of a console to 'io' would enable it for stdout and stdin while leaving +stderr disabled. -- cgit v1.2.3