6.3.2.3. Digital TV audio write()

6.3.2.3.1. Name

Digital TV audio write()

注意

This ioctl is deprecated

6.3.2.3.2. Synopsis

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

6.3.2.3.3. 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.

6.3.2.3.4. Description

This system call can only be used if AUDIO_SOURCE_MEMORY is selected in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in PES format. 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.

6.3.2.3.5. Return Value

EPERM

Mode AUDIO_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.