[mythtv-users] Desperate: Help with ir-keytable and IguanaIR

[Tom Dexter]

On Fri, Nov 17, 2017 at 11:17 AM, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> Wow...I'm about to loose my mind here. As noted in a previous thread,
> my old homebrew serial IR receiver appeared to have died. ir-keytable
> worked with that for a very long time and now isn't getting any sign
> of life at all from it.
>
> I just bought an IguanaIR transceiver. I have the support enabled in
> the kernel, as well as the NEC IR protocol:
>
> CONFIG_IR_IGUANA=y
> CONFIG_IR_NEC_DECODER=y
>
> I know for a fact that my remote uses NEC (a Phillips TIVO34), as that
> protocol worked when my serial IR was working.
>
> EVERYTHING looks right here, and I'm just not getting any sign of life
> out of this thing either. ANY suggestions are welcome. I'm about to
> loose it here. This is what I have:
>
> ir-keytable
> Found /sys/class/rc/rc1/ (/dev/input/event5) with:
>         Driver iguanair, table rc-empty
>         Supported protocols: NEC RC-5 RC-6 JVC SONY SANYO RC-5-SZ
> SHARP XMP other
>         Enabled protocols: NEC
>         Name: IguanaWorks USB IR Transceiver v
>         bus: 3, vendor/product: 1781:0938, version: 0x0000
>         Repeat delay = 500 ms, repeat period = 125 ms
> Found /sys/class/rc/rc0/ (/dev/input/event0) with:
>         Driver serial_ir, table rc-empty
>         Supported protocols: NEC RC-5 RC-6 JVC SONY SANYO RC-5-SZ
> SHARP XMP other
>         Enabled protocols:
>         Name: Serial IR type home-brew
>         bus: 25, vendor/product: 0001:0001, version: 0x0100
>         Repeat delay = 500 ms, repeat period = 125 ms
>
> The first one is the iguana of course. As you see, NEC protocol is
> enabled, which I did with:
>
> echo nec > /sys/class/rc/rc1/protocols
>
> I get nothing at all from "ir-keytables -t", and even from:
>
> od -x /dev/input/event5
>
> It can't be the remote itself, as I have two of them. No way did they
> both crap out at once. I've even tried this on a completely different
> Gentoo system from my frontend.
>
> I even just tried recompiling my kernel without the serial_ir just to
> make sure that wasn't somehow causing issues. Other than obviously
> picking up different device and input paths, I get the same
> behavior...basically nothing at all. Everything here just plain looks
> right, much as it did when my serial receiver was working.
>
> UPDATE: I also have and MCE USB receiver that I bought recently. That
> simply had way too much lag which is why I didn't use it.
> Interestingly, that DOES work with the NEC protocol with "ir-keytable
> -t". Is it possible that the IguanaIR just doesn't work with the NEC
> protocol?
>
> Thanks in advance.
> Tom

One quick question on the IguanaIR: This is the dual channel
transceiver. Is that supposed to have any LED or the like that would
light up when receiving like the MCE does? Mine stays totally dark.
I'd like to know if it might just be defective.

Thanks
Tom