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-rw-r--r--4a-hal-cfg-community/hal-4a-ensoniq.json199
-rw-r--r--4a-hal-cfg-community/hal-4a-jabra.json199
-rw-r--r--4a-hal-cfg-reference/hal-4a-2ch-generic-usb.json14
-rw-r--r--4a-hal-cfg-reference/hal-4a-intel-minnow.json169
-rw-r--r--4a-hal-cfg-reference/hal-4a-intel.json199
-rw-r--r--4a-hal-cfg-reference/hal-4a-rcar-m3.json199
-rw-r--r--README.md9
7 files changed, 986 insertions, 2 deletions
diff --git a/4a-hal-cfg-community/hal-4a-ensoniq.json b/4a-hal-cfg-community/hal-4a-ensoniq.json
new file mode 100644
index 0000000..809acf8
--- /dev/null
+++ b/4a-hal-cfg-community/hal-4a-ensoniq.json
@@ -0,0 +1,199 @@
+{
+ "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+ "metadata": {
+ "uid": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-03",
+ "version": "0.9",
+ "api": "4a-hal-ensoniq",
+ "require": [ "alsacore", "smixer" ],
+ "info": "4a hal for Ensoniq",
+ "author": "Jonathan Aillet",
+ "date": "2018-06-13"
+ },
+ "controls": [
+ {
+ "uid": "ping",
+ "info": "Ping hal",
+ "action": "api://4a-hal-manager#ping"
+ }
+ ],
+ "halmap": [
+ {
+ "uid": "agl-master-playback-volume",
+ "alsa": {
+ "name": "Master Playback Volume",
+ "value": 100
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-volume",
+ "alsa": {
+ "name": "PCM Playback Volume",
+ "value": 100
+ }
+ },
+ {
+ "uid": "agl-master-playback-switch",
+ "alsa": {
+ "name": "Master Playback Switch",
+ "value": 1
+ }
+ },
+ {
+ "uid": "agl-mic-capture-volume",
+ "alsa": {
+ "name": "Capture Volume"
+ }
+ }
+ ],
+ "halmixer": {
+ "uid": "jabra-solemate",
+ "mixerapi": "smixer",
+ "ramps": [
+ {
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 4
+ },
+ {
+ "uid": "ramp-fast",
+ "delay": 50,
+ "up": 2,
+ "down": 4
+ },
+ {
+ "uid": "ramp-normal",
+ "delay": 100,
+ "up": 6,
+ "down": 10
+ },
+ {
+ "uid": "ramp-slow",
+ "delay": 100,
+ "up": 4,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
+ "delay": 100,
+ "up": 1,
+ "down": 1
+ }
+ ],
+ "playbacks" : {
+ "uid": "JABRA-SOLEMATE",
+ "path": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-03",
+ "params": {
+ "rate": 48000
+ },
+ "sink": {
+ "controls": {
+ "volume": {
+ "name": "Speaker Playback Volume",
+ "value": 80
+ },
+ "mute": {
+ "name": "Speaker Playback Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "front-right",
+ "port": 0
+ },
+ {
+ "uid": "front-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "captures": {
+ "uid": "JABRA-SOLEMATE",
+ "path": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-03",
+ "params": {
+ "rate": 48000
+ },
+ "source": {
+ "controls": {
+ "volume": {
+ "name": "Capture Volume"
+ },
+ "mute": {
+ "name": "Capture Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "mic-right",
+ "port": 0
+ },
+ {
+ "uid": "mic-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "zones": [
+ {
+ "uid": "full-stereo",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ },
+ {
+ "uid": "front-seats",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ }
+ ],
+ "streams": [
+ {
+ "uid": "multimedia",
+ "verb": "multimedia",
+ "zone": "full-stereo",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "navigation",
+ "verb": "navigation",
+ "zone": "front-seats",
+ "volume": 70,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "emergency",
+ "verb": "emergency",
+ "zone": "front-seats",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ }
+ ]
+ }
+}
diff --git a/4a-hal-cfg-community/hal-4a-jabra.json b/4a-hal-cfg-community/hal-4a-jabra.json
new file mode 100644
index 0000000..e2d60d2
--- /dev/null
+++ b/4a-hal-cfg-community/hal-4a-jabra.json
@@ -0,0 +1,199 @@
+{
+ "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+ "metadata": {
+ "uid": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-02",
+ "version": "0.9",
+ "api": "4a-hal-jabra-solemate",
+ "require": [ "alsacore", "smixer" ],
+ "info": "4a hal for Jabra Solemate",
+ "author": "Jonathan Aillet",
+ "date": "2018-06-13"
+ },
+ "controls": [
+ {
+ "uid": "ping",
+ "info": "Ping hal",
+ "action": "api://4a-hal-manager#ping"
+ }
+ ],
+ "halmap": [
+ {
+ "uid": "agl-master-playback-volume",
+ "alsa": {
+ "name": "PCM Playback Volume",
+ "value": 80
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-volume",
+ "alsa": {
+ "name": "PCM Playback Volume",
+ "value": 80
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-switch",
+ "alsa": {
+ "name": "PCM Playback Switch",
+ "value": 1
+ }
+ },
+ {
+ "uid": "agl-mic-capture-volume",
+ "alsa": {
+ "name": "Mic Capture Volume"
+ }
+ }
+ ],
+ "halmixer": {
+ "uid": "jabra-solemate",
+ "mixerapi": "smixer",
+ "ramps": [
+ {
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 10
+ },
+ {
+ "uid": "ramp-fast",
+ "delay": 50,
+ "up": 2,
+ "down": 10
+ },
+ {
+ "uid": "ramp-normal",
+ "delay": 50,
+ "up": 2,
+ "down": 4
+ },
+ {
+ "uid": "ramp-slow",
+ "delay": 50,
+ "up": 2,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
+ "delay": 100,
+ "up": 1,
+ "down": 1
+ }
+ ],
+ "playbacks" : {
+ "uid": "JABRA-SOLEMATE",
+ "path": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-02",
+ "params": {
+ "rate": 48000
+ },
+ "sink": {
+ "controls": {
+ "volume": {
+ "name": "Speaker Playback Volume",
+ "value": 80
+ },
+ "mute": {
+ "name": "Speaker Playback Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "front-right",
+ "port": 0
+ },
+ {
+ "uid": "front-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "captures": {
+ "uid": "JABRA-SOLEMATE",
+ "path": "/dev/snd/by-id/usb-0d8c_USB_Sound_Device-02",
+ "params": {
+ "rate": 48000
+ },
+ "source": {
+ "controls": {
+ "volume": {
+ "name": "Capture Volume"
+ },
+ "mute": {
+ "name": "Capture Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "mic-right",
+ "port": 0
+ },
+ {
+ "uid": "mic-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "zones": [
+ {
+ "uid": "full-stereo",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ },
+ {
+ "uid": "front-seats",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ }
+ ],
+ "streams": [
+ {
+ "uid": "multimedia",
+ "verb": "multimedia",
+ "zone": "full-stereo",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "navigation",
+ "verb": "navigation",
+ "zone": "front-seats",
+ "volume": 70,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "emergency",
+ "verb": "emergency",
+ "zone": "front-seats",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ }
+ ]
+ }
+}
diff --git a/4a-hal-cfg-reference/hal-4a-2ch-generic-usb.json b/4a-hal-cfg-reference/hal-4a-2ch-generic-usb.json
index 14eecbf..fdc3b19 100644
--- a/4a-hal-cfg-reference/hal-4a-2ch-generic-usb.json
+++ b/4a-hal-cfg-reference/hal-4a-2ch-generic-usb.json
@@ -7,7 +7,7 @@
"require": [ "alsacore", "smixer" ],
"info": "4a hal for 2ch generic USB device",
"author": "Jonathan Aillet",
- "date": "2018-06-09"
+ "date": "2018-06-13"
},
"controls": [
{
@@ -51,6 +51,12 @@
"mixerapi": "smixer",
"ramps": [
{
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 10
+ },
+ {
"uid": "ramp-fast",
"delay": 50,
"up": 2,
@@ -64,6 +70,12 @@
},
{
"uid": "ramp-slow",
+ "delay": 50,
+ "up": 2,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
"delay": 100,
"up": 1,
"down": 1
diff --git a/4a-hal-cfg-reference/hal-4a-intel-minnow.json b/4a-hal-cfg-reference/hal-4a-intel-minnow.json
new file mode 100644
index 0000000..0e78148
--- /dev/null
+++ b/4a-hal-cfg-reference/hal-4a-intel-minnow.json
@@ -0,0 +1,169 @@
+{
+ "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+ "metadata": {
+ "uid": "/dev/snd/by-path/pci-0000:00:1b.0",
+ "version": "0.9",
+ "api": "4a-hal-intel-minnow",
+ "require": [ "alsacore", "smixer" ],
+ "info": "4a hal for Intel Minnow device",
+ "author": "Jonathan Aillet",
+ "date": "2018-06-13"
+ },
+ "controls": [
+ {
+ "uid": "ping",
+ "info": "Ping hal",
+ "action": "api://4a-hal-manager#ping"
+ }
+ ],
+ "halmap": [
+ {
+ "uid": "agl-master-playback-volume",
+ "alsa": {
+ "name": "IEC958 Playback Switch",
+ "value": 100
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-switch",
+ "alsa": {
+ "name": "IEC958 Playback Switch",
+ "value": 1
+ }
+ }
+ ],
+ "halmixer": {
+ "uid": "intel-minnow",
+ "mixerapi": "smixer",
+ "ramps": [
+ {
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 10
+ },
+ {
+ "uid": "ramp-fast",
+ "delay": 50,
+ "up": 2,
+ "down": 10
+ },
+ {
+ "uid": "ramp-normal",
+ "delay": 50,
+ "up": 2,
+ "down": 4
+ },
+ {
+ "uid": "ramp-slow",
+ "delay": 50,
+ "up": 2,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
+ "delay": 100,
+ "up": 1,
+ "down": 1
+ }
+ ],
+ "playbacks" : {
+ "uid": "INTEL-MINNOW",
+ "path": "/dev/snd/by-path/pci-0000:00:1b.0",
+ "params": {
+ "rate": 48000
+ },
+ "sink": {
+ "channels": [
+ {
+ "uid": "front-right",
+ "port": 0
+ },
+ {
+ "uid": "front-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "captures": {
+ "uid": "INTEL-MINNOW",
+ "path": "/dev/snd/by-path/pci-0000:00:1b.0",
+ "params": {
+ "rate": 48000
+ },
+ "source": {
+ "channels": [
+ {
+ "uid": "mic-right",
+ "port": 0
+ },
+ {
+ "uid": "mic-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "zones": [
+ {
+ "uid": "full-stereo",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ },
+ {
+ "uid": "front-seats",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ }
+ ],
+ "streams": [
+ {
+ "uid": "multimedia",
+ "verb": "multimedia",
+ "zone": "full-stereo",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "navigation",
+ "verb": "navigation",
+ "zone": "front-seats",
+ "volume": 70,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "emergency",
+ "verb": "emergency",
+ "zone": "front-seats",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ }
+ ]
+ }
+}
diff --git a/4a-hal-cfg-reference/hal-4a-intel.json b/4a-hal-cfg-reference/hal-4a-intel.json
new file mode 100644
index 0000000..d489c85
--- /dev/null
+++ b/4a-hal-cfg-reference/hal-4a-intel.json
@@ -0,0 +1,199 @@
+{
+ "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+ "metadata": {
+ "uid": "/dev/snd/by-path/pci-0000:00:1b.1",
+ "version": "0.9",
+ "api": "4a-hal-intel",
+ "require": [ "alsacore", "smixer" ],
+ "info": "4a hal for Intel device",
+ "author": "Jonathan Aillet",
+ "date": "2018-06-13"
+ },
+ "controls": [
+ {
+ "uid": "ping",
+ "info": "Ping hal",
+ "action": "api://4a-hal-manager#ping"
+ }
+ ],
+ "halmap": [
+ {
+ "uid": "agl-master-playback-volume",
+ "alsa": {
+ "name": "Master Playback Volume",
+ "value": 100
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-volume",
+ "alsa": {
+ "name": "PCM Playback Volume",
+ "value": 100
+ }
+ },
+ {
+ "uid": "agl-master-playback-switch",
+ "alsa": {
+ "name": "Master Playback Switch",
+ "value": 1
+ }
+ },
+ {
+ "uid": "agl-capture-volume",
+ "alsa": {
+ "name": "Capture Volume"
+ }
+ }
+ ],
+ "halmixer": {
+ "uid": "intel",
+ "mixerapi": "smixer",
+ "ramps": [
+ {
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 10
+ },
+ {
+ "uid": "ramp-fast",
+ "delay": 50,
+ "up": 2,
+ "down": 10
+ },
+ {
+ "uid": "ramp-normal",
+ "delay": 50,
+ "up": 2,
+ "down": 4
+ },
+ {
+ "uid": "ramp-slow",
+ "delay": 50,
+ "up": 2,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
+ "delay": 100,
+ "up": 1,
+ "down": 1
+ }
+ ],
+ "playbacks" : {
+ "uid": "INTEL",
+ "path": "/dev/snd/by-path/pci-0000:00:1b.1",
+ "params": {
+ "rate": 48000
+ },
+ "sink": {
+ "controls": {
+ "volume": {
+ "name": "Master Playback Volume",
+ "value": 80
+ },
+ "mute": {
+ "name": "Master Playback Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "front-right",
+ "port": 0
+ },
+ {
+ "uid": "front-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "captures": {
+ "uid": "INTEL",
+ "path": "/dev/snd/by-path/pci-0000:00:1b.1",
+ "params": {
+ "rate": 48000
+ },
+ "source": {
+ "controls": {
+ "volume": {
+ "name": "Capture Volume"
+ },
+ "mute": {
+ "name": "Capture Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "mic-right",
+ "port": 0
+ },
+ {
+ "uid": "mic-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "zones": [
+ {
+ "uid": "full-stereo",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ },
+ {
+ "uid": "front-seats",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ }
+ ],
+ "streams": [
+ {
+ "uid": "multimedia",
+ "verb": "multimedia",
+ "zone": "full-stereo",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "navigation",
+ "verb": "navigation",
+ "zone": "front-seats",
+ "volume": 70,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "emergency",
+ "verb": "emergency",
+ "zone": "front-seats",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ }
+ ]
+ }
+}
diff --git a/4a-hal-cfg-reference/hal-4a-rcar-m3.json b/4a-hal-cfg-reference/hal-4a-rcar-m3.json
new file mode 100644
index 0000000..0e5c67a
--- /dev/null
+++ b/4a-hal-cfg-reference/hal-4a-rcar-m3.json
@@ -0,0 +1,199 @@
+{
+ "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+ "metadata": {
+ "uid": "/dev/snd/by-path/platform-sound",
+ "version": "0.9",
+ "api": "4a-hal-rcar-m3",
+ "require": [ "alsacore", "smixer" ],
+ "info": "4a hal for Rcar M3 device",
+ "author": "Jonathan Aillet",
+ "date": "2018-06-13"
+ },
+ "controls": [
+ {
+ "uid": "ping",
+ "info": "Ping hal",
+ "action": "api://4a-hal-manager#ping"
+ }
+ ],
+ "halmap": [
+ {
+ "uid": "agl-master-playback-volume",
+ "alsa": {
+ "name": "Digital Playback Volume1",
+ "value": 80
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-volume",
+ "alsa": {
+ "name": "Digital Playback Volume1",
+ "value": 80
+ }
+ },
+ {
+ "uid": "agl-pcm-playback-switch",
+ "alsa": {
+ "name": "SRC Out Rate Switch",
+ "value": 1
+ }
+ },
+ {
+ "uid": "agl-capture-volume",
+ "alsa": {
+ "name": "DVC In Capture Volume"
+ }
+ }
+ ],
+ "halmixer": {
+ "uid": "rcar-m3",
+ "mixerapi": "smixer",
+ "ramps": [
+ {
+ "uid": "ramp-very-fast",
+ "delay": 50,
+ "up": 6,
+ "down": 10
+ },
+ {
+ "uid": "ramp-fast",
+ "delay": 50,
+ "up": 2,
+ "down": 10
+ },
+ {
+ "uid": "ramp-normal",
+ "delay": 50,
+ "up": 2,
+ "down": 4
+ },
+ {
+ "uid": "ramp-slow",
+ "delay": 50,
+ "up": 2,
+ "down": 2
+ },
+ {
+ "uid": "ramp-very-slow",
+ "delay": 100,
+ "up": 1,
+ "down": 1
+ }
+ ],
+ "playbacks" : {
+ "uid": "RCAR-M3",
+ "path": "/dev/snd/by-path/platform-sound",
+ "params": {
+ "rate": 48000
+ },
+ "sink": {
+ "controls": {
+ "volume": {
+ "name": "Digital Playback Volume1",
+ "value": 80
+ },
+ "mute": {
+ "name": "SRC Out Rate Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "front-right",
+ "port": 0
+ },
+ {
+ "uid": "front-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "captures": {
+ "uid": "RCAR-M3",
+ "path": "/dev/snd/by-path/platform-sound",
+ "params": {
+ "rate": 48000
+ },
+ "source": {
+ "controls": {
+ "volume": {
+ "name": "DVC In Capture Volume"
+ },
+ "mute": {
+ "name": "DVC In Mute Switch"
+ }
+ },
+ "channels": [
+ {
+ "uid": "mic-right",
+ "port": 0
+ },
+ {
+ "uid": "mic-left",
+ "port": 1
+ }
+ ]
+ }
+ },
+ "zones": [
+ {
+ "uid": "full-stereo",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ },
+ {
+ "uid": "front-seats",
+ "sink": [
+ {
+ "target": "front-right",
+ "channel": 0
+ },
+ {
+ "target": "front-left",
+ "channel": 1
+ }
+ ]
+ }
+ ],
+ "streams": [
+ {
+ "uid": "multimedia",
+ "verb": "multimedia",
+ "zone": "full-stereo",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "navigation",
+ "verb": "navigation",
+ "zone": "front-seats",
+ "volume": 70,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ },
+ {
+ "uid": "emergency",
+ "verb": "emergency",
+ "zone": "front-seats",
+ "volume": 60,
+ "mute": false,
+ "params": {
+ "rate": 48000
+ }
+ }
+ ]
+ }
+}
diff --git a/README.md b/README.md
index d693ff0..2d805e7 100644
--- a/README.md
+++ b/README.md
@@ -131,13 +131,20 @@ sudo modprobe snd-aloop
* The `params` is where you can specify some parameters for your stream (such as rate).
* `volume` and `mute` fields are initiate values of the stream.
-#### Note about using a USB device
+### Note about using a USB device
Dynamic handling of USB devices is not yet implemented, so you need to modify the 'hal-4a-2ch-generic-usb.json'
to change the `uid` value in `metadata` section and `path` values in `playbacks` and `captures` sections.
All these values should be replaced by the alsa entry path of your usb device, these entry are listed
under directory '/dev/snd/by-id/...'.
+### Selection of the hal loaded at binding launch
+
+Currently, the 4a-hal binding will try to launch a hal for each json audio configuration
+files found in path specified with CONTROL_CONFIG_PATH (an audio configuration file should begin with 4a-hal-*).
+If you don't want a hal to be launch with the binding, you can just rename/remove the corresponding
+audio json configuration file.
+
## Compile (for each repositories)
```bash