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authorJason Wessel <jason.wessel@windriver.com>2010-05-20 21:04:24 -0500
committerJason Wessel <jason.wessel@windriver.com>2010-05-20 21:04:24 -0500
commitada64e4c98eb5f04a9ca223c5ff9e7ac22ce6404 (patch)
tree48e284cf69157cf54302dcceb01ad7a07b889206 /lib/Kconfig.kgdb
parenta0de055cf61338549b13079a5677ef2e1b6472ef (diff)
downloadlinux-ada64e4c98eb5f04a9ca223c5ff9e7ac22ce6404.tar.gz
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 <jason.wessel@windriver.com> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'lib/Kconfig.kgdb')
-rw-r--r--lib/Kconfig.kgdb7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb
index 78de43a5e90..ee8ae7132f2 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