ALSA: Documentation: fix some thinkos

      <para>

      This function itself doesn't allocate the data space. The data

      must be allocated manually beforehand, and its pointer is passed

      as the argument. This pointer is used as the

      (<parameter>chip</parameter> identifier in the above example)

      for the instance. 

      as the argument. This pointer (<parameter>chip</parameter> in the

      above example) is used as the identifier for the instance.

      </para>

      <para>

        <constant>SNDRV_PCM_INFO_XXX</constant>. Here, at least, you

        have to specify whether the mmap is supported and which

        interleaved format is supported.

        When the is supported, add the

        When the hardware supports mmap, add the

        <constant>SNDRV_PCM_INFO_MMAP</constant> flag here. When the

        hardware supports the interleaved or the non-interleaved

        formats, <constant>SNDRV_PCM_INFO_INTERLEAVED</constant> or