[mythtv-users] External channel change program for Scientific Atlanta 4240HDC?
kpyle at austin.rr.com
Sun Jun 5 04:20:07 UTC 2011
On 06/04/11 19:51, Greg wrote:
> On 06/04/2011 06:12 PM, Keith Pyle wrote:
>> > Does anyone have a working program for changing the channel on a
>> > Scientific Atlanta 4240HDC via Firewire? The usual searches turned up
>> > nothing except some discussion of problems 2-3 years ago where the
>> > sa4250_ch program reported success but did not change the channel. That
>> > is the behavior I see now, even after modifying 4250_ch.c to check the
>> > return value of the command function call (i.e., the command function
>> > avc1394_transaction_block returns a non-NULL value which is documented
>> > as a successful command).
>> > For now, I'm just trying to get channel changing via Firewire through a
>> > standalone program instead of using lirc - not trying to capture in Myth
>> > over Firewire.
>> > Thanks.
>> > Keith
> Look at the third post....
The program in the third post was essentially the same as the sa4250_ch
I was using and it has the same behavior: it claims it changes the
channel on my SA4240HDC, but doesn't. There was, however, a solution
further down in the thread. This code has to be modified to send a
second command that is a key release. With this extra code, it now
successfully changes channels.
Thanks for the pointer.
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