Transmit Repeat Problem + USB-UIRT Speed Problem

[Dan K. <da...@th...>]

I recently began setting up LIRC + USB-UIRT and immediately ran into
problems, out of the box it would control my Sat Receiver, however it would
not control my Sony XBR2. In order to make it work, I've made a few changes
to the LIRC code and can successfully make it work, hopefully someone with
more LIRC knowledge would review the fixes and advise if there is perhaps an
easier way. All of these problems relate back to that the Sony XBR requires
the IR codes to be repeated quickly at minimum it seems 3 times. USB-UIRT
worked amazingly and easily in windows, but LIRC had the below items I had
to overcome.

Problem 1 - Repeat Problem
> With any min_repeat value, commands will not work, I get an IRSend:
timeout error. Looking into the code I noticed the last_code was not set
(see diff) and thus any timer event would fail as the first check is against
the last code which is null. Also, by not calling send_success right away
and waiting for the timerevent to do its thing, I got mixed/unstable results
that left the daemon in weird states. I am not sure why, but putting in the
send_success upfront lircd is much more stable for me.

Problem 2 - Now that LIRC was repeating itself, I noticed that it was not
able to repeat itself fast enough on my box, I traced this down to usage of
gettimeofday versus clock_gettime, apparently on some systems (like mine),
gettimeofday can be sorta slow, by switching this function over, everything
sped up and my TV started to receive signals. I also had to remove a read
piece of code that was always timing out, its that line that I am most
worried about/least confident I've done the right thing.

Problem 3 - Just an FYI for other people, keep in mind LIRC uses your
machines hostname to connect a socket back to it, so it must be able to
resolve your hostname 'nslookup tvremotebox', if it cannot you could waiting
an extra second or more each command as DNS timesout. Setup a DNS entry for
your box name or switch the hostname to localhost.

Thanks
Dan