Could anyone clarify what is supported on this stick for me? According to
https://www.linuxtv.org/wiki/index.php/Astrometa_DVB-T2 DVB-T2 has been
supported since kernel 4.6. I tried using a 4.9.9 kernel about a year ago
and again today using 4.14.30, in both cases with the development tree
code from git://linuxtv.org/media_build.git.
In both cases I don't get a second adapter exposed for the MN88473 demuxer
just the /dev/dvb/adapter0 tree for the RTL2832 which only supports DVB-T.
Here http://www.mklab.rhul.ac.uk/~tom/TVR801-dmesg.txt is the full dmesg
O/P it got using kernel 4.14.30.
A year ago, for fun, I tried hacking the code a little, without really
knowing what I was doing but managed to get the following from dmesg,
dvbdev: DVB: registering new adapter (Astrometa DVB-T2)
usb 1-8: media controller created
dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
i2c i2c-13: Added multiplexed i2c bus 14
rtl2832 13-0010: Realtek RTL2832 successfully attached
mn88473 13-0018: Panasonic MN88473 successfully identified
usb 1-8: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
usb 1-8: DVB: registering adapter 0 frontend 1 (Panasonic MN88473)...
dvbdev: dvb_create_media_entity: media entity 'Panasonic MN88473' registered.
The MN88473 interface I got was recognised by w_scan but was not usable.
It complained the frequency limits were missing. Here is an example,
w_scan -X -a /dev/dvb/adapter0/frontend1
w_scan version 20161022 (compiled for DVB API 5.10)
WARNING: could not guess your country. Falling back to 'DE'
guessing country 'DE', use -c <country> to override
using settings for GERMANY
DVB aerial
DVB-T Europe
scan type TERRESTRIAL, channellist 4
output format czap/tzap/szap/xine
WARNING: could not guess your codepage. Falling back to 'UTF-8'
output charset 'UTF-8', use -C <charset> to override
-_-_-_-_ Getting frontend capabilities-_-_-_-_
Using DVB API 5.10
frontend 'Panasonic MN88473' supports
DVB-T2
INVERSION_AUTO
QAM_AUTO
TRANSMISSION_MODE_AUTO
GUARD_INTERVAL_AUTO
HIERARCHY_AUTO
FEC_AUTO
BANDWIDTH_AUTO not supported, trying 6/7/8 MHz.
This dvb driver is *buggy*: the frequency limits are undefined - please
report to linuxtv.org
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
Scanning DVB-T...
Scanning 8MHz frequencies...
474000: (time: 00:00.633)
482000: (time: 00:02.641)
490000: (time: 00:04.650)
498000: (time: 00:06.661)
[cut]
842000: (time: 01:32.955)
850000: (time: 01:34.960)
858000: (time: 01:36.969)
Scanning DVB-T2...
474000: (time: 01:38.978)
482000: (time: 01:40.989)
490000: (time: 01:43.000)
498000: (time: 01:45.010)
[cut]
850000: (time: 03:13.285)
858000: (time: 03:15.291)
ERROR: Sorry - i couldn't get any working frequency/transponder
Nothing to scan!!
After that I gave up. Any thoughts?
Many thanks
Tom Crane
--
Tom Crane, Dept. Physics, Royal Holloway, University of London, Egham Hill,
Egham, Surrey, TW20 0EX, England.
Email: T.Crane@xxxxxxxxxx
