[mythtv-users] USB on the cable box

Erik Karlin e_karlin at yahoo.com
Wed Nov 9 13:25:30 EST 2005

On Wed, Nov 09, 2005 at 01:04:42PM -0500, Michael Bochynski wrote:
> On Wed, 2005-11-09 at 12:36 -0500, Erik Karlin wrote:
> > On Wed, Nov 09, 2005 at 11:54:29AM -0500, Michael Bochynski wrote:
> > > Hi,
> > > 
> > > I want to use USB port on my cable box (Scientific Atlanta 2100) for
> > > Myth TV to change channels. According to SC2100 this port is designed to
> > > be used for remote.
> > > 
> > > My question is, if I get usb-to-serial cable, do I still have to install
> > > lirc to change channels? Can I use only those scripts in
> > > mythtv/contrib ?
> > > 
> > > Note that I don't need receiver configured using lirc, since I have
> > > wireless (IR) keyboard on PS2. I've learned my remote a bunch of
> > > keypresses, and I don't have to install anything on the OS side. :) 
> > > 
> > > Michael
> > 
> > I'm not sure it'll be that easy:
> > http://www.gossamer-threads.com/lists/mythtv/users/149223
> Hmm... I actually thing that it should be easy. This USB port is
> designed to be used by USB transmitter/receiver pair, which you can buy
> from Scientific Atlanta. 

are you talking about a USB IR xmit/rcv device? Wouldn't the cable box
itself already have an IR receiver?

My cable box has a usb port that will take a USB keyboard to control the
channel changes. I guessed that was what you were referring to.
> This means that this port is designed to receive codes from remote.
> Correct me if I'm wrong, but does it matter what is on the other end of
> USB cable as long as correct codes are being sent? Hence, whether it's a
> IR receiver or a PC with Myth, it shouldn't matter. Unless I got it
> wrong :)

I've used the www.irblaster.info connected to my serial port to try and
control my cable box. It sounds like that's what you're trying to do
over a USB connection on your PC? I figured you really wanted to go
USB-to-USB. My posts in the thread I linked above, along with the older
thread I posted there talk about usb<->usb problems.

> Note that I don't need to control several boxes, as described in the
> thread you linked to, I have one box only and I already took care about
> the receiver part for Mythtv. I only need to send commands from Mythtv
> to my cable box ... :)
> Michael

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