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    Subject[PATCH] alsa: fix SNDRV_PCM_IOCTL_TTSTAMP value.
    "[ALSA] Use posix clock monotonic for PCM and timer timestamps" introduces
    a bug that makes audio device unusable in some computers.

    Signed-off-by: Miguel Botón <>

    diff --git a/include/sound/asound.h b/include/sound/asound.h
    index 475eb71..d35aa44 100644
    --- a/include/sound/asound.h
    +++ b/include/sound/asound.h
    @@ -443,7 +443,7 @@ enum {
    enum {
    SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int),
    SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info),
    - SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x03, int),
    + SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x02, int),
    SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params),
    SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params),
    SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12),
    Miguel Botón
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      Last update: 2007-12-16 01:39    [W:0.020 / U:130.424 seconds]
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