[mythtv-users] Homebrew Serial Receiver Problems

Jeremy Gillick myth at mozmonkey.com
Tue Feb 27 08:17:34 UTC 2007


OK, I spoke a bit too soon.  When I reboot the machine I have to run 
setserial, modprobe and start lircd to get it to work again.  How do I 
get my computer to do this at boot?

Otherwise, it's working great.

- Jeremy

Jeremy Gillick wrote:
> were still referencing  'lirc_i2c' instead of 'lirc_serial'.  And 
> lastly I needed to update /etc/modprobe.conf based on this thread: 
> http://www.gossamer-threads.com/lists/mythtv/users/154688?search_string=missing%20%2Fdev%2Flirc;#154688 
> (http://tinyurl.com/2eyrvt).
>
> Thanks so much for your information, it helped set me down the right path.
>
> - Jeremy
>
> John wrote:
>> I could be wrong but I don't believe the serial port
>> has a true power source coming from one of the pins so
>> you probably won't get a steady voltage coming from
>> any of the pins.
>>
>> I built a homebrew receiver but I used the USB port so
>> I'm somewhat familiar with this. First of all, I'd
>> reboot and do a #setserial -g /dev/ttyS* to make sure
>> the port you're setting off is truly the ttyS0. Then
>> once that looks good, I'd do a 
>>
>> #cd /dev/lirc
>> #ls -asl
>>
>> You shouldn't have anything since you haven't
>> modprobe'd yet.
>>
>> with the device plugged in do a modprobe lirc_serial
>> the do a #ls -asl to see what's created based on your
>> post it should be /dev/lirc/0 make sure this is
>> correct.
>>
>> Then start lircd. I'd start it this way
>>
>> lircd --device=/dev/lirc/0 --output=/dev/lircd
>>
>> make sure the lircd output device was created then
>> instead of using mode2 I'd use xmode2
>>
>> #xmode2 -d /dev/lircd
>>
>> push some buttons on any IR remote and you should see
>> the waveform.
>>
>>
>>  
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