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Diffstat (limited to 'Documentation/parport-lowlevel.txt')
| -rw-r--r-- | Documentation/parport-lowlevel.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/parport-lowlevel.txt b/Documentation/parport-lowlevel.txt index 265fcdcb8e5f..120eb20dbb09 100644 --- a/Documentation/parport-lowlevel.txt +++ b/Documentation/parport-lowlevel.txt | |||
| @@ -339,6 +339,10 @@ Use this function to register your device driver on a parallel port | |||
| 339 | ('port'). Once you have done that, you will be able to use | 339 | ('port'). Once you have done that, you will be able to use |
| 340 | parport_claim and parport_release in order to use the port. | 340 | parport_claim and parport_release in order to use the port. |
| 341 | 341 | ||
| 342 | The ('name') argument is the name of the device that appears in /proc | ||
| 343 | filesystem. The string must be valid for the whole lifetime of the | ||
| 344 | device (until parport_unregister_device is called). | ||
| 345 | |||
| 342 | This function will register three callbacks into your driver: | 346 | This function will register three callbacks into your driver: |
| 343 | 'preempt', 'wakeup' and 'irq'. Each of these may be NULL in order to | 347 | 'preempt', 'wakeup' and 'irq'. Each of these may be NULL in order to |
| 344 | indicate that you do not want a callback. | 348 | indicate that you do not want a callback. |