Please activate A800 driver in the Kernel

NooN · January 4, 2017 at 3:59 PM

Hello,

could you please activate the Avermedia DVB-T A800 driver in the Kernel.
The name of the option is CONFIG_DVB_USB_A800.

Thanks

**CvH** · January 4, 2017 at 6:54 PM Official Post

would you test an image ? if so which arch did you use ?

NooN · January 4, 2017 at 7:40 PM

Hello CvH,

I can test an image and have a Odroid-C2.
I found out, that there is also a firmware-file needed: dvb-usb-avertv-a800-02.fw
That can I extract from an image from wrxtasy.

**CvH** · January 4, 2017 at 7:57 PM Official Post

could you try LibreELEC-Odroid_C2.aarch64-pr1073.img.gz (make backup before)

if work and if not work pls share dmesg | paste

NooN · January 5, 2017 at 1:07 PM

Hello CvH,

I tried your image and I'm sorry to say that it does not work with the DVB-T adapter.
The dmesg|paste got me this URL: eKdL

lsmod does not show the module:

Code

LibreELEC:~ # lsmod
Module                  Size  Used by
8021q                  19087  0
rtc_pcf8563             3551  0
dvb_usb_dibusb_common     4554  0
dib3000mc              12024  0
dibx000_common          6664  1 dib3000mc
dvb_usb                21063  1 dvb_usb_dibusb_common
dvb_core               88767  1 dvb_usb
ir_lirc_codec           5044  3
lirc_dev                8136  1 ir_lirc_codec
meson_ir                3793  0
rc_core                18885  5 lirc_dev,meson_ir,ir_lirc_codec,dvb_usb
mali                  200880  5
amlvideodri            10882  0
videobuf_res            5594  1 amlvideodri
videobuf_core          16779  2 amlvideodri,videobuf_res
videodev              146341  1 amlvideodri
media                  21290  3 dvb_usb,videodev,dvb_core
autofs4                24843  0
fbcon                  37535  0
bitblit                 4444  1 fbcon
softcursor              1200  1 bitblit
font                    7279  1 fbcon

Display More

In the /proc/config.gz there is also the "CONFIG_DVB_USB_A800" not set.
I think the driver/module got not build

Thanks for your help.

**CvH** · January 5, 2017 at 2:24 PM Official Post

Quote from NooN

I think the driver/module got not build

it uses an different approach, it uses the drivers from kernel 4.9 but looks like something is broken

NooN · January 5, 2017 at 6:08 PM

Has the driver so much changed between the libreelec kernel and the mainline linux kernel?

**CvH** · January 5, 2017 at 8:23 PM Official Post

at Odroid we have to use an horrible old kernel (3.14) - that complicate things

NooN · January 5, 2017 at 10:40 PM

Wow. This kernel is almost 3 years old. What does an update prevent to 4.9 or at least 3.17 (this is the last kernel with LTS until 2017)?

**CvH** · January 5, 2017 at 10:45 PM Official Post

The AMLogic chip offer only 3.14 support, this will maybe improve mit 2017.

**CvH** · January 6, 2017 at 1:47 PM Official Post

~~oh well, the driver is broken for at least Kernel 4.9, currently no way to test it for 3.14.~~

oh looks like i fixed it, need to build a new image -> takes a while

NooN · January 6, 2017 at 3:14 PM

Thank you for your time and effort.

**CvH** · January 10, 2017 at 1:07 PM Official Post

Upps forgot to upload LibreELEC-Odroid_C2.aarch64-7.90.010-A800-DVB-support.img.gz

pls a dmesg | paste

if it works I submit a pr to patch it at the kernel

NooN · January 13, 2017 at 9:56 AM

Hello,

I tried the image. There is a driver and the A800 is visible in tvheadend.
But I did not get the tuner set or an mux configured.
This is very strange.
The dmesg output is there: KbiG

**CvH** · January 13, 2017 at 4:27 PM Official Post

LibreELEC-Odroid_C2.aarch64-7.90.010-A800-DVB-support-2.img.gz

and pls again a dmesg | paste

NooN · January 15, 2017 at 11:33 AM

I tried to debug the problem with tvheadend and the dvb-tuner
Maybe the config von wrxtasy can help you, this is the last working image that worked for me.
Thanks for your help

log from "HTS Tvheadend 4.1.2401" with the config "CRASH,main,fastscan,dvb,linuxdvb,scanfile": RggG
dmesg: NZiG

This is from the last working version I have.
Version string:LibreELEC (WRXTASY) Version: 7.1.0
dmesg: hRXJ
log from "HTS Tvheadend 4.1.2401" with config "CRASH,main,fastscan,dvb,linuxdvb,scanfile": MCDT
the kernel config from /proc/config.gz: iPAc

**CvH** · January 15, 2017 at 1:02 PM Official Post

Could you test the Kszaq images with media_build ? He included the fix for the A800 and maybe it works there ?!

The output from dmesg sounds like it is working without a problem

NooN · January 16, 2017 at 1:49 PM

Hello,
the image from Kszaq did not work. I tried different dtd files an nothing happend on the screen or network.
So I tried an other way with the help of a friend:
We used the old Image from wrxtasy with his kernel.
Then we unpacked the system image and put into it the kernel modules and libMali.so.

The system then boots and gives a strange message about "boot=" that i can't completly read. It get's cut left and on the top. seems something to do with the television.
After 60s the system boots normaly.

Then I can install tvheadend and the A800 receiver get's recognized. Also the scan works and the tv stations are found.
dmesg is: USXf
the tvheadend log is: LdQc

Something that puzzeled me is:
The kernel is newer. wrxtasy used a 3.14.65 version. Your Image has the version 3.14.29.
The libMali.so of yout image did not work: there was a version difference: 9.00 to 8.00.
Replaceing it fixed this problem.

The only thing that's bugging me: the resolution is not stable in this kernel. The screen get's distored and recovers now and then. This is why I want to use an other image in the first place.

I don't know where to go from this point on. Is it hard to make this images? maybe I can try to incorperate the 3.14.65 kernel in the normal way.?

Thanks for your help.