shardwick

This all looks very complex and I'm out of my depth with pull requests! Is there an earlier version of the kernel that supports USB soundcards? Could I download that and change kernel without affecting the work I've already done on my a95x? If so, are there any step by step guides anywhere? Thanks Simon

zcat /proc/config.gz | grep -i USB_AUDIO gives... # CONFIG_SND_USB_AUDIO is not set

Thanks Arox... no snd_usb_audio listed on lsmod and when trying modprobe (assuming I did it right) modprobe: FATAL: Module snd_usb_audio not found in directory /lib/modules/4.17.0-rc3-next-20180430-amlogics905x So the n00b question is where and how do I get the module I'll do some further research and learning about modules in the meantime. Thanks all!

Hi, I've a small amount of linux knowledge... enough to be dangerous but not enough to understand fully what's going on. I'm learning slowly but have reached a frustrating failure with my A95x revision 2 set top box. It's running "ARMBIAN 5.41.1 user-built Debian GNU/Linux 9 (stretch) 4.17.0-rc3-next-20180430-amlogics905x" I have a behringer UCA202 USB soundcard - it uses standard texas instruments chipset so should just be plug and play. But there's a gap in my knowledge and in the process of getting the soundcard to detect within Armbian. lsbusb outputs.... Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 08bb:2902 Texas Instruments PCM2902 Audio Codec Bus 001 Device 002: ID 2500:0020 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Relevant lines from dmesg are: [ 1.420548] usbcore: registered new interface driver usbfs [ 1.420620] usbcore: registered new interface driver hub [ 1.420714] usbcore: registered new device driver usb [ 1.422003] Advanced Linux Sound Architecture Driver Initialized. [ 3.034073] hub 1-0:1.0: USB hub found [ 3.037122] hub 1-0:1.0: 2 ports detected [ 3.041352] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller [ 3.046493] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2 [ 3.054088] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed [ 3.060691] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 3.069177] hub 2-0:1.0: USB hub found [ 3.072406] hub 2-0:1.0: config failed, hub doesn't have any ports! (err -19) [ 3.129093] ALSA device list: [ 3.132447] No soundcards found. [ 3.375015] usb 1-1: new high-speed USB device number 2 using xhci-hcd [ 3.739136] usb 1-2: new full-speed USB device number 3 using xhci-hcd [ 3.952146] input: Burr-Brown from TI USB Audio CODEC as /devices/platform/soc/soc:usb@c9000000/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-2/1-2:1.3/0003:08BB:2902.0001/input/input0 [ 4.072254] hid-generic 0003:08BB:2902.0001: input: USB HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on usb-xhci-hcd.0.auto-2/input3 aplay -l shows aplay: device_list:270: no soundcards found... I've done a lot of googling and tried various potential solutions none of which seem to make ALSA see the soundcard even though it seems to be detected at a USB level. I'd be extremely grateful if anyone can help guide me through this? Thanks Simon