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| author | Stephen Chandler Paul <cpaul@redhat.com> | 2015-07-15 10:20:17 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-07-16 10:30:55 -0700 |
| commit | e1443d2849b146be4ed8d4ef89ae7e215aafaa5b (patch) | |
| tree | 874ddd2d1c23d9bf46d2d751fe7c5764a3d18f4e /Documentation/kernel-parameters.txt | |
| parent | 339d6b88e872f8369495a7224916a4d1d8376ca3 (diff) | |
| download | lwn-e1443d2849b146be4ed8d4ef89ae7e215aafaa5b.tar.gz lwn-e1443d2849b146be4ed8d4ef89ae7e215aafaa5b.zip | |
Input: i8042 - add unmask_kbd_data option
A big problem with the current i8042 debugging option is that it outputs
data going to and from the keyboard by default. As a result, many dmesg
logs uploaded by users will unintentionally contain sensitive information
such as their password, as such it's probably a good idea not to output
data coming from the keyboard unless specifically enabled by the user.
Signed-off-by: Stephen Chandler Paul <cpaul@redhat.com>
Reviewed-by: Andreas Mohr <andim2@users.sf.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index bfcb1a62a7b4..fd0f7cd8e496 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1274,6 +1274,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. <bus_id>,<clkrate> i8042.debug [HW] Toggle i8042 debug mode + i8042.unmask_kbd_data + [HW] Enable printing of interrupt data from the KBD port + (disabled by default, and as a pre-condition + requires that i8042.debug=1 be enabled) i8042.direct [HW] Put keyboard port into non-translated mode i8042.dumbkbd [HW] Pretend that controller can only read data from keyboard and cannot control its state |