Hi folks
I have SB sound card and OSS driver
For read sound from line in i use such functions [see below]
How i can read signals from digital in ?
any example/idea welcomed
Tnx in advance
RalfsK
status = read(fdi, adat , sizeof( adat )); /* record some sound */
int fdi; /* sound device file descriptor */
int fdo; /* sound device file descriptor */
int arg; /* argument for ioctl calls */
int status; /* return status of system calls */
/*----*/void open_sound_device_read(void)
/*----*/{
/*----*/
/*----*/ fdi = open("/dev/dsp", O_RDONLY|O_NONBLOCK );
/*----*/ if (fdi < 0) {
/*----*/ perror("open of /dev/dsp failed");
/*----*/ exit(1);
/*----*/ }
/*----*/ //// set sampling parameters
/*----*/ arg = SIZE; //// sample size
/*----*/ status = ioctl(fdi, SOUND_PCM_WRITE_BITS, &arg);
/*----*/ if (status == -1)
/*----*/ perror("SOUND_PCM_WRITE_BITS ioctl failed");
/*----*/ if (arg != SIZE)
/*----*/ perror("unable to set sample size");
/*----*/
/*----*/ arg = CHANNELS; //// mono or stereo
/*----*/ status = ioctl(fdi, SOUND_PCM_WRITE_CHANNELS, &arg);
/*----*/ if (status == -1)
/*----*/ perror("SOUND_PCM_WRITE_CHANNELS ioctl failed");
/*----*/ if (arg != CHANNELS)
/*----*/ perror("unable to set number of channels");
/*----*/
/*----*/ arg = RATE; //// sampling rate
/*----*/ status = ioctl(fdi, SOUND_PCM_WRITE_RATE, &arg);
/*----*/ if (status == -1)
/*----*/ perror("SOUND_PCM_WRITE_WRITE ioctl failed");
/*----*/
/*----*/}
/*----*/void close_sound_device_read(void)
/*----*/{
/*----*/ close(fdi);
/*----*/}
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