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Diffstat (limited to 'Documentation/admin-guide/sysrq.rst')
| -rw-r--r-- | Documentation/admin-guide/sysrq.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/admin-guide/sysrq.rst b/Documentation/admin-guide/sysrq.rst index a46209f4636c..e6424d8c5846 100644 --- a/Documentation/admin-guide/sysrq.rst +++ b/Documentation/admin-guide/sysrq.rst @@ -231,13 +231,13 @@ prints help, and C) an action_msg string, that will print right before your handler is called. Your handler must conform to the prototype in 'sysrq.h'. After the ``sysrq_key_op`` is created, you can call the kernel function -``register_sysrq_key(int key, struct sysrq_key_op *op_p);`` this will +``register_sysrq_key(int key, const struct sysrq_key_op *op_p);`` this will register the operation pointed to by ``op_p`` at table key 'key', if that slot in the table is blank. At module unload time, you must call -the function ``unregister_sysrq_key(int key, struct sysrq_key_op *op_p)``, which -will remove the key op pointed to by 'op_p' from the key 'key', if and only if -it is currently registered in that slot. This is in case the slot has been -overwritten since you registered it. +the function ``unregister_sysrq_key(int key, const struct sysrq_key_op *op_p)``, +which will remove the key op pointed to by 'op_p' from the key 'key', if and +only if it is currently registered in that slot. This is in case the slot has +been overwritten since you registered it. The Magic SysRQ system works by registering key operations against a key op lookup table, which is defined in 'drivers/tty/sysrq.c'. This key table has |