[mythtv-users] Jetway motherboard IR receiver

Jarod Wilson jarod at wilsonet.com
Wed May 25 22:08:50 UTC 2011


On Feb 12, 2011, at 1:46 PM, lists.md301 wrote:

> On 2/11/11, Jarod Wilson <jarod at wilsonet.com> wrote:
>> On Feb 11, 2011, at 4:16 PM, lists.md301 wrote:
>> 
>>> I recently purchased a Jetway Atom D525 (dual-core) Nvidia ION2 mini-ITX
>>> barebone machine (HBJC231C98-525-B), a Newegg promo, to use as a frontend
>>> only.  Successfully copied an existing Gentoo 0.23.1 frontend-only install
>>> (AMD socket 939 dual-core) onto it, with the necessary tweaks
>>> (kernel/mythtv recompile to support VDPAU, etc.)   Not too painful to
>>> accomplish, and everything is working great.  Haven't yet tackled audio
>>> over HDMI, as I'm on the 2.6.32 kernel, but 1080p output of both MPEG2 and
>>> Handbrake transcodes to MKV/h.264 are smooth with the Nvidia 260.x driver
>>> (whatever was most recent in my Gentoo portage snapshot sync).  The one
>>> thing that has me stumped is the built-in IR receiver.  The machine came
>>> with a remote which is MCE compatible, and can turn on the PC with the
>>> remote's power button.  Nice feature.  Right now I have an MCE receiver
>>> dongle plugged into one of the front USB ports, and with the MCE LIRC
>>> module/definitions, I can use either the barebone remote or the one that
>>> came with the dongle.  But I'd like to use what's already built-in and
>>> lose the dongle.
>>> 
>>> I haven't been able to find any definitive info about what the IR chipset
>>> is, or how it might be supported by LIRC.  The Jetway website has a
>>> Windows driver for it which seems to indicate that it is a Fintek CIR
>>> chip, but my internet searches have turned up nothing about Linux support,
>>> or even anyone asking the question that I am.  The motherboard is a Jetway
>>> NC98-F.  I've tried one of the latest kernels (2.6.35) with patches for
>>> some other Atom 330 motherboards (ASRock), as well as all the other
>>> "stock" modules from LIRC 0.8.7.  As the barebone is a relatively new
>>> offering, I'm not surprised.  Anybody know something?
>> 
>> Yes. There's no Linux driver for that hardware yet. Its planned,
>> but I don't have an ETA.
>> 
> 
> Thanks for the reply, Jarod.  I considered the best way to contact you
> about this (IRC/email), but figured I'd start here so that anyone else
> interested might learn something.  It's doubtful I'd have the time,
> but I have thought about taking a crack at it myself.  I'm a
> hardware/embedded engineer in my day job, so it might be interesting,
> but I face a learning curve on the specifics.
> 
> I'll keep an eye out for any progress.  Glad to hear it's on your radar.

https://patchwork.kernel.org/patch/816562/

-- 
Jarod Wilson
jarod at wilsonet.com





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