6.1.2.7. FE_GET_EVENT¶
6.1.2.7.2. Synopsis¶
-
int
ioctl
(int fd, FE_GET_EVENT, struct dvb_frontend_event *ev)¶
6.1.2.7.3. Arguments¶
fd
- File descriptor returned by
open()
. ev
- Points to the location where the event, if any, is to be stored.
6.1.2.7.4. Description¶
This ioctl call returns a frontend event if available. If an event is
not available, the behavior depends on whether the device is in blocking
or non-blocking mode. In the latter case, the call fails immediately
with errno set to EWOULDBLOCK
. In the former case, the call blocks until
an event becomes available.
6.1.2.7.5. Return Value¶
On success 0 is returned.
On error -1 is returned, and the errno
variable is set
appropriately.
EWOULDBLOCK |
There is no event pending, and the device is in non-blocking mode. |
EOVERFLOW |
Overflow in event queue - one or more events were lost. |
Generic error codes are described at the Generic Error Codes chapter.