Should all be working far as I can tell.... All i get is fuzz/static throught the 3.5mm headphone plug.

 

Alsa info:

http://alsa-project.org/db/?f=eacea3ea4fd57e45bd9ba735cd7cf3b8a82024b7
 

```

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: rockchipes8316c [rockchip-es8316c], device 0: ff880000.i2s-ES8316 HiFi ES8316 HiFi-0 [ff880000.i2s-ES8316 HiFi
ES8316 HiFi-0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 1: hdmisound [hdmi-sound], device 0: ff8a0000.i2s-i2s-hifi i2s-hifi-0 [ff8a0000.i2s-i2s-hifi i2s-hifi-0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
```

 

```

for i in /proc/asound/card[0-9]*; do echo "--- $i ---";amixer -c $(cat $i/id); done;

--- /proc/asound/card0 ---
Simple mixer control 'Headphone',0
 Capabilities: pvolume
 Playback channels: Front Left - Front Right
 Limits: Playback 0 - 3
 Mono:
 Front Left: Playback 3 [100%] [0.00dB]
 Front Right: Playback 3 [100%] [0.00dB]
Simple mixer control 'Headphone Mixer',0
 Capabilities: volume
 Playback channels: Front Left - Front Right
 Capture channels: Front Left - Front Right
 Limits: 0 - 11
 Front Left: 11 [100%] [0.00dB]
 Front Right: 11 [100%] [0.00dB]
Simple mixer control 'Mic Boost',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [on]
Simple mixer control 'Playback Polarity',0
 Capabilities: enum
 Items: 'Normal' 'R Invert' 'L Invert' 'L + R Invert'
 Item0: 'Normal'
Simple mixer control 'Capture Polarity',0
 Capabilities: enum
 Items: 'Normal' 'Invert'
 Item0: 'Normal'
Simple mixer control 'ADC',0
 Capabilities: cvolume cvolume-joined
 Capture channels: Mono
 Limits: Capture 0 - 192
 Mono: Capture 0 [0%] [-99999.99dB]
Simple mixer control 'ADC Double Fs',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'ADC PGA Gain',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 10
 Mono: 0 [0%] [-3.50dB]
Simple mixer control 'ADC Soft Ramp',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [on]
Simple mixer control 'ALC',0
 Capabilities: cswitch cswitch-joined
 Capture channels: Mono
 Mono: Capture [off]
Simple mixer control 'ALC Capture Attack Time',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 10
 Mono: 2 [20%]
Simple mixer control 'ALC Capture Decay Time',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 10
 Mono: 3 [30%]
Simple mixer control 'ALC Capture Hold Time',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 10
 Mono: 0 [0%]
Simple mixer control 'ALC Capture Max',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 28
 Mono: 28 [100%] [35.50dB]
Simple mixer control 'ALC Capture Min',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 28
 Mono: 0 [0%] [-12.00dB]
Simple mixer control 'ALC Capture Noise Gate',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'ALC Capture Noise Gate Threshold',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 31
 Mono: 0 [0%]
Simple mixer control 'ALC Capture Noise Gate Type',0
 Capabilities: enum
 Items: 'Constant PGA Gain' 'Mute ADC Output'
 Item0: 'Constant PGA Gain'
Simple mixer control 'ALC Capture Target',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 11
 Mono: 11 [100%] [-1.50dB]
Simple mixer control 'DAC',0
 Capabilities: pvolume
 Playback channels: Front Left - Front Right
 Limits: Playback 0 - 192
 Mono:
 Front Left: Playback 192 [100%] [0.00dB]
 Front Right: Playback 192 [100%] [0.00dB]
Simple mixer control 'DAC Double Fs',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [on]
Simple mixer control 'DAC Mono Mix',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'DAC Notch Filter',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'DAC Soft Ramp',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'DAC Soft Ramp Rate',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 4
 Mono: 4 [100%]
Simple mixer control 'DAC Source Mux',0
 Capabilities: enum
 Items: 'LDATA TO LDAC, RDATA TO RDAC' 'LDATA TO LDAC, LDATA TO RDAC' 'RDATA TO LDAC, RDATA TO RDAC' 'RDATA TO LDAC,
LDATA TO RDAC'
 Item0: 'LDATA TO LDAC, RDATA TO RDAC'
Simple mixer control 'DAC Stereo Enhancement',0
 Capabilities: volume volume-joined
 Playback channels: Mono
 Capture channels: Mono
 Limits: 0 - 7
 Mono: 0 [0%]
Simple mixer control 'Differential Mux',0
 Capabilities: enum
 Items: 'lin1-rin1' 'lin2-rin2' 'lin1-rin1 with 20db Boost' 'lin2-rin2 with 20db Boost'
 Item0: 'lin1-rin1'
Simple mixer control 'Digital Mic Mux',0
 Capabilities: enum
 Items: 'dmic disable' 'dmic data at high level' 'dmic data at low level'
 Item0: 'dmic disable'
Simple mixer control 'Left Headphone Mixer LLIN',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'Left Headphone Mixer Left DAC',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [on]
Simple mixer control 'Left Headphone Mux',0
 Capabilities: enum
 Items: 'lin1-rin1' 'lin2-rin2' 'lin-rin with Boost' 'lin-rin with Boost and PGA'
 Item0: 'lin2-rin2'
Simple mixer control 'Right Headphone Mixer RLIN',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [off]
Simple mixer control 'Right Headphone Mixer Right DAC',0
 Capabilities: pswitch pswitch-joined
 Playback channels: Mono
 Mono: Playback [on]
Simple mixer control 'Right Headphone Mux',0
 Capabilities: enum
 Items: 'lin1-rin1' 'lin2-rin2' 'lin-rin with Boost' 'lin-rin with Boost and PGA'
 Item0: 'lin1-rin1'
--- /proc/asound/card1 ---

 

```
 

ok it looks like it is working. Just the alsa audio test outputs a static noise! 🙃