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

[Ryan Brancheau (US)]

Thanks for the heads up, I'll check it out.  BTW, do you know how hard
it would be to map serial data to keyboard data?  Or would it be as
simple as writing characters to the serial port? 

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of MythTV User
Sent: Wednesday, March 31, 2004 9:57 PM
To: Discussion about mythtv
Subject: Re: RE: [mythtv-users] USB keyboard control of digital cable
box

Here's another idea for you -

this thing takes a PS2 keyboard input and emulates a USB keyboard:
http://www.tigerdirect.com/applications/searchtools/item-details.asp?
EdpNo=160954&Sku=A225-3138&SRCCODE=CNETFEED&CMP=OTC-CNETFEED

Take the USB side and plug it into your cable box.
Take the PS2 clock and data lines and wire them up to some bits on your
serial or parallel port of your mythbox.  Bitbang those bits to emulate
a PS2 keyboard.





> This is a multi-part message in MIME format.
> 
> 
> 
> 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
> > > 
> > > 
> > > 
> > > 
> > 
> > 
> 
> 


_______________________________________________
mythtv-users mailing list
mythtv-users at mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users