6.2.2.3. dvb video write()

6.2.2.3.1. Name

dvb video write()

注意

This ioctl is deprecated.

6.2.2.3.2. Synopsis

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

6.2.2.3.3. Arguments

int fd	File descriptor returned by a previous call to open().
void *buf	Pointer to the buffer containing the PES data.
size_t count	Size of buf.

6.2.2.3.4. Description

This system call can only be used if VIDEO_SOURCE_MEMORY is selected in the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in PES format, unless the capability allows other formats. If O_NONBLOCK is not specified the function will block until buffer space is available. The amount of data to be transferred is implied by count.

6.2.2.3.5. Return Value

EPERM	Mode VIDEO_SOURCE_MEMORY not selected.
ENOMEM	Attempted to write more data than the internal buffer can hold.
EBADF	fd is not a valid open file descriptor.