From ada64e4c98eb5f04a9ca223c5ff9e7ac22ce6404 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 20 May 2010 21:04:24 -0500 Subject: kgdboc,keyboard: Keyboard driver for kdb with kgdb This patch adds in the kdb PS/2 keyboard driver. This was mostly a direct port from the original kdb where I cleaned up the code against checkpatch.pl and added the glue to stitch it into kgdb. This patch also enables early kdb debug via kgdbwait and the keyboard. All the access to configure kdb using either a serial console or the keyboard is done via kgdboc. If you want to use only the keyboard and want to break in early you would add to your kernel command arguments: kgdboc=kbd kgdbwait If you wanted serial and or the keyboard access you could use: kgdboc=kbd,ttyS0 You can also configure kgdboc as a kernel module or at run time with the sysfs where you can activate and deactivate kgdb. Turn it on: echo kbd,ttyS0 > /sys/module/kgdboc/parameters/kgdboc Turn it off: echo "" > /sys/module/kgdboc/parameters/kgdboc Signed-off-by: Jason Wessel Reviewed-by: Dmitry Torokhov --- lib/Kconfig.kgdb | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'lib') diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb index 78de43a5e902..ee8ae7132f20 100644 --- a/lib/Kconfig.kgdb +++ b/lib/Kconfig.kgdb @@ -63,4 +63,11 @@ config KGDB_KDB help KDB frontend for kernel +config KDB_KEYBOARD + bool "KGDB_KDB: keyboard as input device" + depends on VT && KGDB_KDB + default n + help + KDB can use a PS/2 type keyboard for an input device + endif # KGDB -- cgit v1.2.3