diff options
| author | Paul Fox <pgf@laptop.org> | 2010-05-19 10:11:13 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-05-19 10:14:15 -0700 |
| commit | a2056ffd4ae9e578ff9abb5eb49137020af71fd4 (patch) | |
| tree | 9994be5959824107ee3466ad58780d47a4165607 /Documentation/sysrq.txt | |
| parent | ee6e54e2ae56734a96fd7b66cf46b756d0f25ca3 (diff) | |
Input: Documentation/sysrq.txt - update KEY_SYSRQ info
While setting up sysrq operation on the XO laptop (which lacks a SysRq
key), i realized that the documentation was quite out of date.
Change documentation of SysRq to reflect current KEY_SYSRQ value.
Signed-off-by: Paul Fox <pgf@laptop.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'Documentation/sysrq.txt')
| -rw-r--r-- | Documentation/sysrq.txt | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt index d56a0177542..5c17196c8fe 100644 --- a/Documentation/sysrq.txt +++ b/Documentation/sysrq.txt @@ -177,13 +177,13 @@ virtual console (ALT+Fn) and then back again should also help. * I hit SysRq, but nothing seems to happen, what's wrong? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -There are some keyboards that send different scancodes for SysRq than the -pre-defined 0x54. So if SysRq doesn't work out of the box for a certain -keyboard, run 'showkey -s' to find out the proper scancode sequence. Then -use 'setkeycodes <sequence> 84' to define this sequence to the usual SysRq -code (84 is decimal for 0x54). It's probably best to put this command in a -boot script. Oh, and by the way, you exit 'showkey' by not typing anything -for ten seconds. +There are some keyboards that produce a different keycode for SysRq than the +pre-defined value of 99 (see KEY_SYSRQ in include/linux/input.h), or which +don't have a SysRq key at all. In these cases, run 'showkey -s' to find an +appropriate scancode sequence, and use 'setkeycodes <sequence> 99' to map +this sequence to the usual SysRq code (e.g., 'setkeycodes e05b 99'). It's +probably best to put this command in a boot script. Oh, and by the way, you +exit 'showkey' by not typing anything for ten seconds. * I want to add SysRQ key events to a module, how does it work? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |