Date: Fri, 29 Apr 2016 17:47:00 +1000 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Hans Petter Selasky <hps@selasky.org> Cc: multimedia@freebsd.org Subject: Re: Problems with webcamd and RTL2832U Message-ID: <20160429074700.GD22731@eureka.lemis.com> In-Reply-To: <57230274.80802@selasky.org> References: <20160427080137.GQ15485@eureka.lemis.com> <57207F55.2040309@selasky.org> <20160428071242.GB22731@eureka.lemis.com> <5721BA55.7030701@selasky.org> <20160429025243.GC22731@eureka.lemis.com> <57230274.80802@selasky.org>
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--AkbCVLjbJ9qUtAXD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Friday, 29 April 2016 at 8:43:00 +0200, Hans Petter Selasky wrote: > On 04/29/16 04:52, Greg 'groggy' Lehey wrote: >> Certainly I shouldn't be using it, since this is a DVB-T tuner. This >> is puzzling: why is MythTV even trying to use it? I can't find any >> reference to it in the DVB-T setup, which isn't surprising. Does >> webcamd have any connection with DiSEqC? > > Diseqc is a set of commands that send special voltage sequences on > the antenna port, for an external multi-antenna switch. My understanding is that it only relates to DVB-S. That's also the response to the otherwise ignored bug report at https://code.mythtv.org/trac/ticket/4378 suggests. > I guess if you use DVB-T, this is not supported by the device. Have > you connected a Diseqc device with the antenna port? Not knowingly. But there are a couple of amplifiers upstream, so I disconnected the antenna and plugged in the toy antenna that came with the tuner. Deleted the entries for the old tuner and tried again. Once again it created not one, but two entries in the capturecard table. It's interesting to note that the only difference between the two records is the attribute dvb_diseqc_type: one is set to 0, the other to NULL. I have already tried removing one record, or setting both to NULL or 0. No help. But it does suggest there's something broken in Myth. > Maybe you can check the MythTV code where the error comes from and > make it ignore the failures? That's painful. Here's a snippet of code that I found in Myth years ago (http://www.lemis.com/grog/diary-sep2004.php#18): /* ci must be 0 */ if(bitoff != 6) { (uint8_t)strm[co]= bitten; co++; } goto BAUCHWEH; HERZWEH: In any case, I have another old Myth box (Linux) connected to the same antenna system, and I don't have problems there. Greg -- Sent from my desktop computer. Finger grog@FreeBSD.org for PGP public key. See complete headers for address and phone numbers. This message is digitally signed. If your Microsoft mail program reports problems, please read http://lemis.com/broken-MUA --AkbCVLjbJ9qUtAXD Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlcjEXQACgkQIubykFB6QiOniwCdGEOIMYoQU261MAwW7ktTSFRE vjQAoKyIk7i9qI+r2I9goKA453U0Atk2 =0drO -----END PGP SIGNATURE----- --AkbCVLjbJ9qUtAXD--
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