[mythtv-users] tuner numbering

Wed Feb 26 22:56:33 UTC 2014

Hoi Daryl,

Wednesday, February 26, 2014, 11:36:06 PM, you wrote:

> On Wed, Feb 26, 2014 at 4:14 PM, Roger Siddons <dizygotheca at ntlworld.com> wrote:
>> On Wed, 26 Feb 2014 18:57:25 -0000, Daryl McDonald <darylangela at gmail.com>
>> wrote:
>>
>>> On Mon, Feb 24, 2014 at 3:27 PM, Roger Siddons
>>> <dizygotheca at ntlworld.com> wrote:
>>>>
>>>> Correct. That was my suggestion at
>>>> http://www.gossamer-threads.com/lists/mythtv/users/562186?#562186
>>>>
>>>> Fixing adapter numbers is a simple solution if you don't swap tuners
>>>> about
>>>> and can remember what each adapter is months/years later. Personally I
>>>> like
>>>> to see my own symlink names in the dialog.
>>>>
>>
>>>
>>> Have you had any luck getting the symlink name to stay put in >capture
>>> cards, for digital cards?
>>>>
>>
>> I only have digital cards. And when I start mythtv-setup the capture cards
>> still refer to the symlinks they were assigned. My guess is that when setup
>> starts/exits, it validates the cards and resets yours to a default (first?)
>> because it can't find the dvr0, demux0 or net0 devices.
>>
>> These rules are based on the information you posted previously. Change the
>> "dig1250" and "DigKW150" to whatever you like.
>>
>> SUBSYSTEM=="dvb", ATTRS{vendor}=="0x14f1", ATTRS{device}=="0x8852",
>> PROGRAM="/bin/sh -c 'K=%k; K=$${K#dvb}; printf dvb/dig1250/%%s $${K#*.};
>> exit 0'", SYMLINK+="%c"
>>
>> SUBSYSTEM=="dvb", ATTRS{vendor}=="0x1131", ATTRS{device}=="0x7133",
>> PROGRAM="/bin/sh -c 'K=%k; K=$${K#dvb}; printf dvb/DigKW150/%%s $${K#*.};
>> exit 0'", SYMLINK+="%c"
>>
>> Rather than creating a single symlink to adapterN/frontend0 it uses shell
>> script to create symlinks for all the adapter's device nodes.
>>
>> Your digital adapter directories should look like this. Note each line of
>> the device node begins with a "c" meaning it's a 'character file' (a
>> device).
>>
>> $ ls -l /dev/dvb/adapter0
>> total 0
>> drwxr-xr-x 2 root root 120 Jan 25 19:44 ./
>> drwxr-xr-x 12 root root 240 Jan 25 19:44 ../
>> crw-rw----+ 1 root video 212, 0 Jan 25 19:44 demux0
>> crw-rw----+ 1 root video 212, 1 Jan 25 19:44 dvr0
>> crw-rw----+ 1 root video 212, 7 Jan 25 19:44 frontend0
>> crw-rw----+ 1 root video 212, 2 Jan 25 19:44 net0
>>
>> If your system places dig1250 on adapter0 then the udev rule will create
>> directory dig1250 as follows. Note each line begins with "l" meaning it's a
>> symbolic link and each file links to the similarly named device node on the
>> appropriate adapter, so Myth should be happy.
>>
>> $ ls -l /dev/dvb/dig1250/
>> total 0
>> lrwxrwxrwx 1 root root 18 Jan 25 19:44 demux0 -> ../adapter0/demux0
>> lrwxrwxrwx 1 root root 16 Jan 25 19:44 dvr0 -> ../adapter0/dvr0
>> lrwxrwxrwx 1 root root 21 Jan 25 19:44 frontend0 -> ../adapter0/frontend0
>> lrwxrwxrwx 1 root root 16 Jan 25 19:44 net0 -> ../adapter0/net0
>>
>> I don't know how you've configured your analog card but be careful not to
>> disrupt it. You could even put your digital udev rules in a separate *.rules
>> file to the analog one(s).
>>
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> I must have missed something, because after a "digital-card.rules"
> file, that looks like:
> SUBSYSTEM=="dvb", ATTRS{class}=="0x040000", ATTRS{device}=="0x8852",
> PROGRAM="/bin/sh -c 'K=%k; K=$${K#dvb}; printf dvb/HP1250/%%s $${K#*.};
> exit 0'", SYMLINK+="%c"

> SUBSYSTEM=="dvb", ATTRS{class}=="0x048000", ATTRS{device}=="0x08802",
> PROGRAM="/bin/sh -c 'K=%k; K=$${K#dvb}; printf dvb/PC800i/%%s $${K#*.};
> exit 0'", SYMLINK+="%c"

> the second card is a different one that had the same vendor "info", so
> I substituted class "info"

> daryl at daryl-A780L3C:~$ ls -l /dev/dvb/adapter*
> /dev/dvb/adapter0:
> total 0
> crw-rw----+ 1 root video 212, 5 Feb 26 17:21 demux0
> crw-rw----+ 1 root video 212, 6 Feb 26 17:21 dvr0
> crw-rw----+ 1 root video 212, 4 Feb 26 17:21 frontend0
> crw-rw----+ 1 root video 212, 7 Feb 26 17:21 net0

> /dev/dvb/adapter6:
> total 0
> crw-rw----+ 1 root video 212, 1 Feb 26 17:20 demux0
> crw-rw----+ 1 root video 212, 2 Feb 26 17:20 dvr0
> crw-rw----+ 1 root video 212, 0 Feb 26 17:20 frontend0
> crw-rw----+ 1 root video 212, 3 Feb 26 17:20 net0
> daryl at daryl-A780L3C:~$

> The above still look like devices, not links :-(

> I am in a stable spot right now with the module options, but the
> thought of accomplishing my goal so elegantly, with the script you're
> suggesting, is quite tantalizing.   Thanks Daryl

>>
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> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org

Oh and btw that vendor is the same is no problem. They distinguish then
on the device ID. It simply means they come from the same
manufacturer. So if no simlinks appear put the vendorID back.

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

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