projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
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1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _VIDEO_STILLPICTURE: | |
| 4 | ||
| 586027ce | 5 | ================== |
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6 | VIDEO_STILLPICTURE |
| 7 | ================== | |
| 8 | ||
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9 | NAME |
| 10 | ---- | |
| 47d23e36 | 11 | |
| 586027ce | 12 | VIDEO_STILLPICTURE |
| 47d23e36 | 13 | |
| 586027ce | 14 | SYNOPSIS |
| 47d23e36 MCC |
15 | -------- |
| 16 | ||
| 17 | .. c:function:: int ioctl(fd, int request = VIDEO_STILLPICTURE, struct video_still_picture *sp) | |
| 18 | ||
| 47d23e36 | 19 | |
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20 | ARGUMENTS |
| 21 | --------- | |
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22 | |
| 23 | .. flat-table:: | |
| 24 | :header-rows: 0 | |
| 25 | :stub-columns: 0 | |
| 26 | ||
| 27 | ||
| 28 | - .. row 1 | |
| 29 | ||
| 30 | - int fd | |
| 31 | ||
| 32 | - File descriptor returned by a previous call to open(). | |
| 33 | ||
| 34 | - .. row 2 | |
| 35 | ||
| 36 | - int request | |
| 37 | ||
| 38 | - Equals VIDEO_STILLPICTURE for this command. | |
| 39 | ||
| 40 | - .. row 3 | |
| 41 | ||
| 42 | - struct video_still_picture \*sp | |
| 43 | ||
| 44 | - Pointer to a location where an I-frame and size is stored. | |
| 45 | ||
| 46 | ||
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47 | DESCRIPTION |
| 48 | ----------- | |
| 49 | ||
| 50 | This ioctl call asks the Video Device to display a still picture | |
| 51 | (I-frame). The input data shall contain an I-frame. If the pointer is | |
| 52 | NULL, then the current displayed still picture is blanked. | |
| 53 | ||
| 54 | ||
| 55 | RETURN VALUE | |
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56 | ------------ |
| 57 | ||
| 58 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 59 | appropriately. The generic error codes are described at the | |
| 60 | :ref:`Generic Error Codes <gen-errors>` chapter. |