Re: LIRC / MythTV setup questions

On Sun, Jun 30, 2024 at 06:58:43PM +0200, Bengt Martensson wrote:
> On 6/30/24 04:16, Christopher Sean Hilton wrote:
> > Hello,
> > 
> > It's become time to update my mythtv. This change is being driven by the fact that the
> > Scientific Atlanta 4250 set top box which my cable provider, Altice / Optimum, choose so
> > many years ago will no longer be supported sometime in August. My current setup doesn't
> > require lirc, I use firewire tochange channels but the new cable box, an Optimum branded
> > Samsung SMT-C5320 doesn't respond to the firewire like the SA4250.
> 
> I found the IR codes for Samsung SMT-C5320 on the Internet, and loaded it
> into IrScrutinizer. The protocol was identified as Panasonic_Old. With said
> program, I also generated a lirc.conf file, enclosed. (The frequency looks a
> bit uncommon, if it does not work, try with 38000) Hope this helps.
> 
> 
> [ ...snip... ]
 
Thanks Bengt,

I tried that file and I got no joy. I'm starting to believe that I have a problem somewhere
in my setup and that I'm actually not emitting any IR signals at all. But I don't have a way
to test that. As a result, I'm getting discouraged and I'm running out of ideas.

I've ordered an IR Receiver on the hope that I my original thesis is correct and that the
only issue is that I'm sending the wrong codes so my catv box isn't able to respond to
them. I'm hoping that getting the receiver will let me use `irrecord` to create a local
`SMT-C5320.lircd.conf` file which would hopefully allow me to change channels on this
(these) cable boxes so I can use it with mythtv.

One of my big concerns is that I saw a note on a TV forum list that very specifically called
out this box as it was issued from CableVision back in the day. It seems that they custom
ordered them from Samsung to respond to the same remote that they shipped. This single
remote could control either an SA42xx or this Samsung set top box. You could switch between
the two set top boxes with making any configuration change to the remote. That has me
thinking that these SMT-C5320s have been hacked to respond to a special set of codes.

-- Chris



> # IrScrutinizer parametric export
> #
> # Creating tool: IrScrutinizer version 2.4.2-SNAPSHOT
> # Creating user: bengt
> # Creating date: Sun Jun 30 18:44:44 CEST 2024
> # Encoding: WINDOWS-1252
> #
> # Manufacturer: Samsung
> # Model: SMT-C5320
> # Displayname: Samsung SMT-C5320
> # Device Class: cable
> # Remotename: 
> #
> 
> # Protocol name: Panasonic_Old
> begin remote
> 	name		Samsung_SMT-C5320-Panasonic_Old
> 	bits		22
> 	flags		SPACE_ENC
> 	eps		30
> 	aeps		100
> 	zero		833	833
> 	one		833	2499
> 	header		3332	3332
> 	ptrail		833
> 	gap		44000
> 	frequency	57600
> 	begin codes
> 		ASTERISK	0x000000000037E103
> 		CHANNEL_DOWN	0x000000000036F121
> 		CHANNEL_UP	0x0000000000377111
> 		CURSOR_DOWN	0x000000000037A10B
> 		CURSOR_ENTER	0x0000000000366133
> 		CURSOR_LEFT	0x000000000037810F
> 		CURSOR_RIGHT	0x0000000000364137
> 		CURSOR_UP	0x000000000036812F
> 		DIGIT_0	0x0000000000373119
> 		DIGIT_1	0x000000000036113D
> 		DIGIT_2	0x000000000037111D
> 		DIGIT_3	0x000000000036912D
> 		DIGIT_4	0x000000000037910D
> 		DIGIT_5	0x0000000000365135
> 		DIGIT_6	0x0000000000375115
> 		DIGIT_7	0x000000000036D125
> 		DIGIT_8	0x000000000037D105
> 		DIGIT_9	0x0000000000363139
> 		ENTER	0x000000000036B928
> 		EXIT	0x0000000000366932
> 		FAVORITE	0x000000000037F101
> 		FORMAT_SCROLL	0x000000000036B928
> 		FORWARD	0x000000000036293A
> 		FUNCTION_BLUE	0x000000000036193C
> 		FUNCTION_GREEN	0x00000000000F7E10
> 		FUNCTION_RED	0x000000000037191C
> 		FUNCTION_YELLOW	0x000000000037E902
> 		GUIDE	0x000000000036C127
> 		INFO	0x000000000036213B
> 		LIVE	0x000000000036B129
> 		MENU_DVR	0x000000000036C926
> 		MENU_MAIN	0x000000000036F920
> 		MENU_SETUP	0x0000000000373918
> 		PAUSE	0x0000000000374117
> 		PIP	0x000000000037B908
> 		PIP_CHANNEL_DOWN	0x000000000037F900
> 		PIP_CHANNEL_UP	0x000000000036E922
> 		PIP_POSITION	0x0000000000377910
> 		PIP_SWAP	0x0000000000367930
> 		PLAY	0x000000000037990C
> 		POWER_TOGGLE	0x000000000037C107
> 		PREVIOUS_CHANNEL	0x000000000036E123
> 		RECORD	0x0000000000375914
> 		REPLAY	0x000000000037C906
> 		REVERSE	0x000000000037291A
> 		STOP	0x0000000000365934
> 		VIDEO_SOURCE	0x0000000000376113
> 	end codes
> end remote



-- 
Chris

      __o          "All I was trying to do was get home from work."
    _`\<,_           -Rosa Parks
___(*)/_(*)____.___o____..___..o...________ooO..._____________________
Christopher Sean Hilton                    [chris/at/vindaloo/dot/com]