# Allo usbridge sig. | dietpi 8.11.2 | cracks/pops on USB DAC **URL:** \ **Category:** Troubleshooting\ **Created:** [28 November 2022 14:11 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094 "2022-11-28T14:11:35Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [28 November 2022 14:11 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/1 "2022-11-28T14:11:35Z")
### Creating a bug report/issue #### Required Information - DietPi version | `cat /boot/dietpi/.version` G\_DIETPI\_VERSION\_CORE=8 G\_DIETPI\_VERSION\_SUB=11 G\_DIETPI\_VERSION\_RC=2 G\_GITBRANCH=‘master’ G\_GITOWNER=‘MichaIng’ G\_LIVE\_PATCH\_STATUS[0]=‘applied’ - Distro version | `echo $G_DISTRO_NAME $G_RASPBIAN` bullseye 0 - Kernel version | `uname -a` Linux DietPi 5.15.76-v7+ #1597 SMP Fri Nov 4 12:13:17 GMT 2022 armv7l GNU/Linux - SBC model | `echo $G_HW_MODEL_NAME` or (EG: RPi3) RPi CM 3+ (armv7l) Allo usbridge sig. - Power supply used | (EG: 5V 1A RAVpower) Allo Nirvana 5V - SD card used | (EG: SanDisk ultra) #### Additional Information (if applicable) - Software title | (EG: Nextcloud) - Was the software title installed freshly or updated/migrated? - Can this issue be replicated on a fresh installation of DietPi? ← If you sent a “dietpi-bugreport”, please paste the ID here → - Bug report ID | `echo $G_HW_UUID` #### Steps to reproduce 1. Updated from 8.5.x to 8.11.2 2. Stream music and use USB DAC as output.. (i’m using Raspotify, Squeezelite, GMRender and TIdal Connect) #### Expected behaviour - Music without cracks and pops #### Actual behaviour - Occasional cracks and pops in the music #### Extra details - It has probably something to do with the current USB ASIX driver. - modinfo ax88179\_178a | grep version srcversion: 6C1FCF063025567E7E0CF65 vermagic: 5.15.76-v7+ SMP mod\_unload modversions ARMv7 p2v8 - Suggested driver (by Allo): version: v2.0.0 More info: [http://3.230.113.73:9011/Allocom/DietPi/info](http://3.230.113.73:9011/Allocom/DietPi/info) ---
**Author:** ![Joulinar](https://dietpi.com/forum/user_avatar/dietpi.com/joulinar/32/57_2.png) [@Joulinar](https://dietpi.com/forum/u/Joulinar)\ **Post date:** [28 November 2022 16:18 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/2 "2022-11-28T16:18:15Z")
ping @MichaIng maybe you can have a look pls ---
**Author:** ![MichaIng](https://dietpi.com/forum/user_avatar/dietpi.com/michaing/32/7_2.png) [@MichaIng](https://dietpi.com/forum/u/MichaIng)\ **Post date:** [28 November 2022 17:10 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/3 "2022-11-28T17:10:32Z")
There should be the kernel postinst script `/etc/kernel/postinst.d/dietpi-USBridgeSig` which installs the driver from Allo. It is however possible that at time of kernel upgrade, Allo did not yet compile the matching new kernel module, in which case the download fails. Please try this: ```bash /etc/kernel/postinst.d/dietpi-USBridgeSig "$(uname -r)" ``` Ah, latest drivers are indeed missing: [http://3.230.113.73:9011/Allocom/USBridgeSig/](http://3.230.113.73:9011/Allocom/USBridgeSig/) Please ask Allo to provide them. Especially the builds for stable RPi kernel releases haven’t been updated for over a year, which is important not only for DietPi users but also for Raspberry Pi OS users, which all have stable kernel packages installed: [http://3.230.113.73:9011/Allocom/USBridgeSig/stable\_rel/](http://3.230.113.73:9011/Allocom/USBridgeSig/stable_rel/) ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [28 November 2022 18:38 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/4 "2022-11-28T18:38:52Z")
Many thanks! I’ve requested Allo to compile and provide the missing drivers and for the stable RPi kernels as well. Cheers! ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [30 November 2022 12:54 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/5 "2022-11-30T12:54:44Z")
In the mean time I’ve been tinkering with compiling the driver kernel module myself. I’ve more or less succeeded in this. I’m a C# software developper/programmer by profession, but have little linux experience. To make this a learning exercise I’ve forked the Allo driver source code and added a Makefile, install script and a tutorial to build and install the driver module. The repo can be found here: [https://github.com/ce-designs/USBridgeSig-AX2v0](https://github.com/ce-designs/USBridgeSig-AX2v0) The linux guru’s over here will probably laugh their heads off when they see my approach. 🤣 But I’m always open to suggestions on how to improve and simplify the procedure. One question: 1. How to compile and build \*.ko.xz modules instead of \*.ko? ---
**Author:** ![Jappe](https://dietpi.com/forum/user_avatar/dietpi.com/jappe/32/1788_2.png) [@Jappe](https://dietpi.com/forum/u/Jappe)\ **Post date:** [30 November 2022 13:18 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/6 "2022-11-30T13:18:15Z")
.xz is a compressed file archive, so my guess is, you just have to compress the .ko file with `xz-utils`. ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [30 November 2022 16:44 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/7 "2022-11-30T16:44:05Z")
That worked, so I included it in the script. I’m now able to compile and install the ax88179\_178a driver without the help of Allo! 🥳 I might add the driver for this particular kernel build to my repo anytime soon, so it can be installed without the need to install all the other dependencies for compiling a driver. ---
**Author:** ![Joulinar](https://dietpi.com/forum/user_avatar/dietpi.com/joulinar/32/57_2.png) [@Joulinar](https://dietpi.com/forum/u/Joulinar)\ **Post date:** [1 December 2022 08:08 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/8 "2022-12-01T08:08:03Z")
Good it is working for you now. Would be better if Allo could take care to provide packages from there end as official source. Let’s see. ---
**Author:** ![MichaIng](https://dietpi.com/forum/user_avatar/dietpi.com/michaing/32/7_2.png) [@MichaIng](https://dietpi.com/forum/u/MichaIng)\ **Post date:** [1 December 2022 08:15 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/9 "2022-12-01T08:15:55Z")
Great work. Probably can add a GitHub workflow to compile those ourselves (regularly based on kernel releases) and upload to our server. I was never really happy to have this plain HTTP IP address download of something sensitive like a kernel module. ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [1 December 2022 10:30 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/10 "2022-12-01T10:30:28Z")
I would appreciate that, but I also agree with @Joulinar in that Allo should provide the drivers as the official source. ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [24 October 2023 10:15 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/11 "2023-10-24T10:15:49Z")
Did you manage to add a workflow for compiling the dietpi usbridgeSig drivers? I want to update to the latest version, but want to know if I need to compile the drivers myself. ---
**Author:** ![\_MeMe](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/_/a9adbd/32.png) [@\_MeMe](https://dietpi.com/forum/u/_MeMe)\ **Post date:** [24 October 2023 14:34 UTC](https://dietpi.com/forum/t/allo-usbridge-sig-dietpi-8-11-2-cracks-pops-on-usb-dac/15094/12 "2023-10-24T14:34:13Z")
I looked in the workflow folder and didn’t find any workflow for compiling the drivers, so once again I compiled these myself. I did need to update the source code of the driver though. Since kernel 6.1.0 the netif\_napi\_add function is replaced by netif\_napi\_add\_weight > After this change was able to compile the driver.