[mythtv-users] controlling two digital cable boxes
atd7 at cornell.edu
Tue Mar 2 11:22:15 EST 2004
Quoting Robert Kulagowski <bob at smalltime.com>:
> > I'm sure that I'm not the only one with this kind of arrangement. Is
> > a cheap/easy way to, say, run a cable from a usb port on the myth box
> > the serial port on the second cable box, and then use a second instance
> > the "channel" script for this?
> There do exist USB->Serial converters. It may or may not work under
> linux. Failing that, you could purchase a PCI serial card.
The majority of USB->Serial converters will work under Linux.
Whether it will work with LIRC is a different story - The LIRC driver depends on
toggling of non-data (control) lines on the serial port, and some converters do
not support reading/setting of all of these lines. (Some don't support ANYTHING
other than TxD and RxD - This is a hardware limitation under ANY OS.)
Plus lirc_serial depends on accessing a 16550's registers.
If your cable box allows serial control, an external USB->Serial converter
should work wonderfully. If you want a second LIRC emitter - USB->Serial isn't
going to cut it. :(
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