[mythtv-users] USB keyboard control of digital cable box

Khanh Tran khanh at slc.edu
Mon Mar 22 11:42:11 EST 2004


But then why wouldn't I just use the IR blaster to send remote codes to
my cable box?  Why bother buying a keyboard that I'll only use the IR
receiver for?


-Khanh Tran
khanh at khanh.net

-----Original Message-----
From: wbradley at bham.rr.com [mailto:wbradley at bham.rr.com] 
Sent: Monday, March 22, 2004 8:33 AM
To: Discussion about mythtv
Subject: Re: RE: [mythtv-users] USB keyboard control of digital cable
box


So say you have a logitech wireless keyboard..plug it into the cable box
and then use a logitech remote file?
----- Original Message -----
From: Steven Cruysberghs <steven.cruysberghs at pi.be>
Date: Monday, March 22, 2004 7:15 am
Subject: RE: [mythtv-users] USB keyboard control of digital cable box

> Or you could use a wireless USB keyboard receiver and send the 
> keypresses using lirc.
> 
> > -----Oorspronkelijk bericht-----
> > Van: mythtv-users-bounces at mythtv.org 
> > [mythtv-users-bounces at mythtv.org] Namens Khanh Tran
> > Verzonden: maandag 22 maart 2004 13:30
> > Aan: Discussion about mythtv
> > Onderwerp: RE: [mythtv-users] USB keyboard control of digital cable 
> > box
> > 
> > 
> > Great!  So, then someone must have at least ATTEMPTED writing 
> > something close to what I'm looking for, no?
> > 
> > 
> > -Khanh Tran
> > khanh at khanh.net
> > 
> >  
> > 
> > -----Original Message-----
> > From: Ben Scott [benscott at cableone.net]
> > Sent: Monday, March 22, 2004 12:26 AM
> > To: Discussion about mythtv
> > Subject: Re: [mythtv-users] USB keyboard control of digital
> cable box
> > 
> > There is a thing generally called a USB link cable, I think they 
> > even sell them at places like Best Buy and Comp USA.
> > Here's a link I found on Google for one: 
> > http://www.usbgear.com/item_102.html
> > 
> > So it's basically a host on both ends, and a funky little box in the

> > middle pretends to be a device for both hosts
> > 
> > As for getting that to work on linux and then using it to send 
> > keyboard commands, well...
> > 
> > Ben Scott
> > 
> > Andrew Jamieson wrote:
> > 
> > >----- Original Message -----
> > >From: "Khanh Tran" <khanh at slc.edu>
> > >To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> > >Sent: Monday, March 22, 2004 12:29 PM
> > >Subject: [mythtv-users] USB keyboard control of digital cable box
> > >
> > >
> > >I've got a Scientific Atlanta 4200 digital cable box.  It's got
> a USB
> > >port on the back and interestingly enough, I can plug any
> > USB keyboard
> > >into it and change channels by entering the numbers.  Is
> > there any way
> > >to make MythTV or Linux output the keyboard commands to control
> the
> > >cable box?  I've heard of serial port control of satellite
> > receivers,
> > >so it's not too far off I suppose...
> > >
> > >Thanks!
> > >
> > >
> > >-Khanh Tran
> > >khanh at khanh.net
> > >
> > >
> > >
> > >Not easily.  USB is a master / slave system (actually Host /
> > Device is
> > >the official nomenclature) - a keyboard is a Device and a PC
> > is a Host,
> > 
> > >as would be your cable box.  Communication is not possible Host
> <->
> > >Host or Device <-> Device.  To do what you ask you would
> > need some way
> > >to control an
> > >(external) USB device from the mythTV box that then
> > presented itself as
> > 
> > >a USB keyboard to your cable box.  This is perfectly
> > achievable with a
> > >custom micro-controller design (say RS232 serial ->
> > micro-controller /
> > >USB -> cable
> > >box) but can't be done without such custom hardware.  I know of
> no
> > >commercial products that do this.
> > >
> > >
> > >Andrew Jamieson
> > >
> > >_______________________________________________
> > >mythtv-users mailing list
> > >mythtv-users at mythtv.org
> > >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> > >
> > >  
> > >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-> bin/mailman/listinfo/mythtv-users
> > 
> > 
> > 
> > 
> 
> 




More information about the mythtv-users mailing list