CDROMREADAUDIO ioctl

This is a discussion on CDROMREADAUDIO ioctl within the Linux Programming forums, part of the Platform Specific Boards category; hi linux-programmers, I played a bit with the CDROM-ioctls, really great . But now i have some problems with CDROMREADAUDIO! ...

  1. #1
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    CDROMREADAUDIO ioctl

    hi linux-programmers,

    I played a bit with the CDROM-ioctls, really great . But now i have some problems with CDROMREADAUDIO! don't get the track of a cd to a file in raw mode... do you have some experience with this ioctl? could you post me an example, i really didn't find something suitable on the internet!

    thanks in advance
    wudmx

  2. #2
    Obsessed with C chrismiceli's Avatar
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    CDROMREADAUDIO takes an input pointer 'const struct cdrom_read_audio *'.
    The 'buf' field points to an output buffer
    of length 'nframes * CD_FRAMESIZE_RAW'.
    That was from a cdrom ioctl man page, and cdrom_read_audio is this
    Code:
    struct cdrom_read_audio
    {
    	union cdrom_addr addr; /* frame address */
    	u_char addr_format; /* CDROM_LBA or CDROM_MSF */
    	int nframes; /* number of 2352-byte-frames to read at once, limited by the drivers */
    	u_char *buf; /* frame buffer (size: nframes*2352 bytes) */
    };
    I don't know how to use them, but mabey that will help.
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  3. #3
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    I don't know how to use them, but mabey that will help.
    I already know this structure, should have said this in my first posting. My problem is how to use it, so an example would be really nice!

    thanks anyway
    wudmx

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