| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _KEY_SET: |
| |
| ============== |
| KEY_SET |
| ============== |
| |
| Name |
| ---- |
| |
| KEY_SET |
| |
| |
| Synopsis |
| -------- |
| .. code-block:: c |
| |
| int ioctl( int fd, KEY_SET, struct key_descr *key) |
| |
| Arguments |
| --------- |
| |
| ``fd`` |
| File descriptor returned by open /dev/key. |
| |
| ``key`` |
| |
| Pointer to structure containing key parameters. |
| |
| |
| Description |
| ----------- |
| |
| This ioctl call update the key contents according to the key index. |
| if update the odd/even key, you can call this ioctl to update key to |
| key_table, but this just for ree mode, not ta mode. |
| |
| |
| Return Value |
| ------------ |
| |
| On success 0 is returned, on error -1 and the ``errno`` variable is set |
| appropriately. The generic error codes are described at the |
| :ref:`Generic Error Codes <gen-errors>` chapter. |
