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2 DirecTV STB Serial control
http://forums.linhes.org/viewtopic.php?f=14&t=8149		 Page 1 of 1
Author:  NoDrugAds [ Sat Jan 28, 2006 12:21 pm ]
Post subject:  2 DirecTV STB Serial control
I am planning a MythTV System and want to build it with two Hauppauge PVR cards one for each of two DirecTV boxes so I can record two streams or watch while recording, etc. My RCA DirecTv boxes have serial ports so I think I can control them with serial cables.

My question is if my Mobo has one serial port can I use a usb to serial adapter for the second box? If not what should I do? Is serial control superior to IR blasters? It seems like it should be.

I didn't find an answer to this exact question in the forum and apologize if I have missed it.
Author:  davem [ Sat Jan 28, 2006 12:50 pm ]
Post subject: 
I bought a dual serial port card off ebay, that worked well for me.
Author:  Dinki [ Sat Jan 28, 2006 1:05 pm ]
Post subject: 
I too added a dual serial port card and it works great. I think it was under $20 new. I did have to do a little tweaking to get it to detect right though. Here's the command I used if you should happen to need it:

Code:
rmmod serial ;setserial /dev/ttyS2 irq 10 port 0xd000 uart 16550;modprobe serial;
Author:  NoDrugAds [ Sun Jan 29, 2006 1:56 pm ]
Post subject:  Thanks
I ordered a serial card with my mobo and other stuff. I will give it a try. Did you guys make your own cables or buy the snapstream ones. I think I can use some DB9 cables and some handset cable from an old phone.
Author:  Dinki [ Mon Jan 30, 2006 12:57 pm ]
Post subject:  Re: Thanks
NoDrugAds wrote:
I ordered a serial card with my mobo and other stuff. I will give it a try. Did you guys make your own cables or buy the snapstream ones. I think I can use some DB9 cables and some handset cable from an old phone.


I made my own using an old phone cord from a handset if I remember correctly. I think the standard phone cord does not fit the opening, but the curly handset ones do. You should be able to find the pinout pretty easily too.
Author:  davem [ Mon Jan 30, 2006 8:26 pm ]
Post subject: 
I've got curly cords with electrical tape hanging out of the back of mine. :)
Author:  NoDrugAds [ Thu Feb 23, 2006 5:03 pm ]
Post subject: 
I am finally tryng to get a second box working. The first one works ok with my homemade cables. I can't get the second one to work using the Netmos serial card.

Bus 1, device 8, function 0:
Serial controller: PCI device 9710:1835 (NetMos Technology) (rev 1).
IRQ 21.
Master Capable. Latency=32.
I/O at 0x9000 [0x9007].
I/O at 0x9400 [0x9407].
I/O at 0x9800 [0x9807].
I/O at 0x9c00 [0x9c07].
I/O at 0xa000 [0xa007].
I/O at 0xa400 [0xa40f].

I don't know anything about serial ports but have been trying different setserial commands but I keep getting an input output error when I run the script on any port except ttyS0.

I tried:
Quote:
Dinki
PostPosted: Sat Jan 28, 2006 11:05 am Post subject:
I too added a dual serial port card and it works great. I think it was under $20 new. I did have to do a little tweaking to get it to detect right though. Here's the command I used if you should happen to need it:

Code:
rmmod serial ;setserial /dev/ttyS2 irq 10 port 0xd000 uart 16550;modprobe serial;


This is the response I get:
root@mythtv:~# rmmod serial ;setserial /dev/ttyS2 irq 10 port 0xd000 uart 16550;modprobe serial;
ERROR: Module serial does not exist in /proc/modules
FATAL: Module serial not found.

I am using the 686 modules. Is that the problem?
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