6.2.2.21. VIDEO_GET_CAPABILITIES¶
6.2.2.21.2. Synopsis¶
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VIDEO_GET_CAPABILITIES¶
int ioctl(fd, VIDEO_GET_CAPABILITIES, unsigned int *cap)
6.2.2.21.3. Arguments¶
| int fd | File descriptor returned by a previous call to open(). |
| int request | Equals VIDEO_GET_CAPABILITIES for this command. |
| unsigned int *cap | Pointer to a location where to store the capability information. |
6.2.2.21.4. Description¶
This ioctl call asks the video device about its decoding capabilities. On success it returns and integer which has bits set according to the defines in section ??.
6.2.2.21.5. 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
Generic Error Codes chapter.