Backport of audio documentation from masterflounder_6.0.3flounder/6.0.36.0.3

Documentation was available only on master. New documentation website is
now by branch, so documentation should be available on both branches.

Bug: SPEC-1993

Change-Id: I55484d5c1f28ae1e7fa927533b3dd862a03ed207
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 32 insertions, 0 deletions

diff --git a/docs/high-level-api/TipsAndTricks/Devices.md b/docs/high-level-api/TipsAndTricks/Devices.md
new file mode 100644
index 0000000..9e1c0cd
--- /dev/null
+++ b/docs/high-level-api/TipsAndTricks/Devices.md
@@ -0,0 +1,32 @@
+# List available devices
+
+To list the available devices, as well as their subdevices, you can use the
+**aplay** command.
+
+```bash
+user@machine$ aplay -l
+**** List of PLAYBACK Hardware Devices ****
+card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
+  Subdevices: 8/8
+  Subdevice #0: subdevice #0
+  Subdevice #1: subdevice #1
+  Subdevice #2: subdevice #2
+  Subdevice #3: subdevice #3
+  Subdevice #4: subdevice #4
+  Subdevice #5: subdevice #5
+  Subdevice #6: subdevice #6
+  Subdevice #7: subdevice #7
+card 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
+  Subdevices: 8/8
+  Subdevice #0: subdevice #0
+  Subdevice #1: subdevice #1
+  Subdevice #2: subdevice #2
+  Subdevice #3: subdevice #3
+  Subdevice #4: subdevice #4
+  Subdevice #5: subdevice #5
+  Subdevice #6: subdevice #6
+  Subdevice #7: subdevice #7
+card 1: Intel [HDA Intel], device 0: Generic Analog [Generic Analog]
+  Subdevices: 0/1
+  Subdevice #0: subdevice #0
+```