alsa-gobject: misc fixes and documentation for system calls

[GitHub pull_request - opened]

alsa-project/alsa-gobject pull request #34 was opened from takaswie:

This patchset includes misc fixes and documentation for system calls for each methods.

Request URL   : https://github.com/alsa-project/alsa-gobject/pull/34
Patch URL     : https://github.com/alsa-project/alsa-gobject/pull/34.patch
Repository URL: https://github.com/alsa-project/alsa-gobject