3.2.4. DVB demux write()¶

3.2.4.1. Name¶

DVB demux write()

3.2.4.2. Synopsis¶

ssize_t write(int fd, const void *buf, size_t count)¶

3.2.4.3. Arguments¶

fd: File descriptor returned by a previous call to open().
buf: Buffer with data to be written
count: Number of bytes at the buffer

3.2.4.4. Description¶

This system call is only provided by the logical device /dev/dvb/adapter0/dvr0, associated with the physical demux device that provides the actual DVR functionality. It is used for replay of a digitally recorded Transport Stream. Matching filters have to be defined in the corresponding physical demux device, /dev/dvb/adapter0/demux0. The amount of data to be transferred is implied by count.

3.2.4.5. Return Value¶

`EWOULDBLOCK`	No data was written. This might happen if O_NONBLOCK was specified and there is no more buffer space available (if O_NONBLOCK is not specified the function will block until buffer space is available).
`EBUSY`	This error code indicates that there are conflicting requests. The corresponding demux device is setup to receive data from the front- end. Make sure that these filters are stopped and that the filters with input set to DMX_IN_DVR are started.
`EBADF`	fd is not a valid open file descriptor.