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<div class="moz-cite-prefix">On 06/10/2019 22:33, Simon Lambourn
wrote:<br>
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<blockquote type="cite"
cite="mid:CAPLCpaZzEa67k-gjm478DR=pA34T-mLDdAARfUmjZUg2QS_JVA@mail.gmail.com">
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<div dir="ltr">I can shed some light on this thread: <a
href="https://lists.gt.net/mythtv/users/620466#620466"
moz-do-not-send="true">https://lists.gt.net/mythtv/users/620466#620466</a>
<div>Specifically</div>
<div>Original post from zackjones88:
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style="box-sizing:border-box">Raspberry Pi have
announced a DVBT2 Hat for Pi devices. It is
selling for approximately 22€. Does
anyone know if MythTV can support this somehow?
Would really like to move to a network tuner so
this could be a cheap method of giving it a try. <a
href="https://www.raspberrypi.org/products/raspberry-pi-tv-hat"
rel="nofollow" target="_blank"
style="box-sizing:border-box;color:rgb(81,98,7);text-decoration-line:none;outline:0px"
moz-do-not-send="true">https://www.raspberrypi.org/products/raspberry-pi-tv-hat</a> Thanks</div>
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<div>StevenAgent then replied:</div>
<div><span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">I
do not know specifically about Pis or that tuner. But the
general</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">rule
is that MythTV on Linux supports any tuner that has Linux
drivers</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">that
conform to the Linux DVBAPI specification. So if the tuner
has</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">drivers
that create a /dev/dvb device that looks like this:</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">root@mypvr:/tmp#
ll /dev/dvb/adapter0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">total
0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">drwxr-xr-x
2 root root 120 Oct 8 04:31 ./</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">drwxr-xr-x
18 root root 360 Oct 8 04:31 ../</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">crw-rw----+
1 root video 212, 32 Oct 8 04:31 demux0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">crw-rw----+
1 root video 212, 33 Oct 8 04:31 dvr0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">crw-rw----+
1 root video 212, 35 Oct 8 04:31 frontend0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">crw-rw----+
1 root video 212, 34 Oct 8 04:31 net0</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">then
it is likely to work. And so will almost any other Linux</span><br
style="box-sizing:border-box;color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">
<span
style="color:rgb(79,76,73);font-family:Lato,Arial,sans-serif;background-color:rgb(246,246,246)">software
that supports DVBAPI tuners.</span><br>
</div>
<div><br>
</div>
<div>I've got a raspberry pi 3b with a TV Hat and Raspbian
Buster + MythTV-Light v0.30, as a slave backend (master on
Ubuntu bionic with MythTV v0.30). It doesn't QUITE work. </div>
<div>The /dev/dev entries are exactly as above, but net0 is
missing. So I guess the TV Hat driver doesn't fully
implement the Linux DVBAPI specification.</div>
<div><br>
</div>
<div>Within MythTV, I can define the card and scan for
channels (and it finds the channels, including HD channels),
but the tuner status shows as "errored" in the system info.</div>
<div>Unless I've done something wrong, then it doesn't appear
to work with MythTV at present. </div>
<div>TVHeadend works and can stream TV.</div>
</div>
<div><br>
</div>
<div>(As a new user I hope I have done this reply correctly - I
wasn't able to access the original email to reply to it so had
to quote it from the archive. Apols if this is not the right
way).</div>
</div>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
</pre>
</blockquote>
<p>I have the TV HAT on a Pi3 Model B+ running Raspbian Buster it
works as as a full backend on the Pi3.</p>
<p>I also ran a quick test on the Pi3 as a slave backend and it
worked with a master backend running mythtv 30.<br>
</p>
<p>The only issue I had was in Capture Card setup, the Signal and
Tuning timeout defaults (1000, 3000) are too low, I used 7000 and
10000 (only because I have DVB-S/S2 on another system and just
used the same values).</p>
<p>The Signal timeout is used when scanning in mythtv-setup and can
miss channels when at the default of 1000. <br>
</p>
<p>Mike<br>
</p>
<p><br>
</p>
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