UCM: Document some standard values

Playback/CaptureChannels has been around for a bit. Playback/CaptureRate
is new and is intended to be used to specify the sample rate at which
the Playback/CapturePCM should be opened.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/include/use-case.h b/include/use-case.h
index 93b3456..4e13249 100644 (file)
--- a/include/use-case.h
+++ b/include/use-case.h
@@ -259,9 +259,13 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
  *   TQ                        - Tone Quality
  *   PlaybackPCM       - full PCM playback device name
  *   CapturePCM                - full PCM capture device name
+ *   PlaybackRate      - playback device sample rate
+ *   PlaybackChannels  - playback device channel count
  *   PlaybackCTL       - playback control device name
  *   PlaybackVolume    - playback control volume ID string
  *   PlaybackSwitch    - playback control switch ID string
+ *   CaptureRate       - capture device sample rate
+ *   CaptureChannels   - capture device channel count
  *   CaptureCTL                - capture control device name
  *   CaptureVolume     - capture control volume ID string
  *   CaptureSwitch     - capture control switch ID string