projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 13fec989 A |
1 | <h2>i386_io_port_remove</h2> |
| 2 | <hr> | |
| 3 | <p> | |
| 4 | <strong>Function</strong> - Disable target thread's ability to invoke operations on the | |
| 5 | specified device. | |
| 6 | <h3>SYNOPSIS</h3> | |
| 7 | <pre> | |
| 8 | <strong>kern_return_t i386_io_port_remove</strong> | |
| 9 | <strong>(thread_act_t</strong> <var>target_act</var>, | |
| 10 | <strong>device_t</strong> <var>device</var><strong>);</strong> | |
| 11 | </pre> | |
| 12 | <h3>PARAMETERS</h3> | |
| 13 | <dl> | |
| 14 | <p> | |
| 15 | <dt> <var>target_act</var> | |
| 16 | <dd> | |
| 17 | [in thread send right] | |
| 18 | Thread whose permission bitmap is to be cleared | |
| 19 | <p> | |
| 20 | <dt> <var>device</var> | |
| 21 | <dd> | |
| 22 | [in device send right] | |
| 23 | Device whose permission is to be revoked | |
| 24 | </dl> | |
| 25 | <h3>DESCRIPTION</h3> | |
| 26 | <p> | |
| 27 | The <strong>i386_io_port_remove</strong> function removes the specified | |
| 28 | device from the | |
| 29 | thread's I/O permission bitmap, thereby prohibiting I/O instructions being | |
| 30 | executed against the device. | |
| 31 | <h3>RETURN VALUES</h3> | |
| 32 | <p> | |
| 33 | Only generic errors apply. | |
| 34 | <h3>RELATED INFORMATION</h3> | |
| 35 | <p> | |
| 36 | Functions: | |
| 37 | <a href="i386_io_port_add.html"><strong>i386_io_port_add<strong></a>, | |
| 38 | <a href="i386_io_port_list.html"><strong>i386_io_port_list<strong></a>. |