[mythtv-users] Implementing HD-PVR IR Blaster

Jarod Wilson jarod at wilsonet.com
Mon Nov 30 18:04:02 UTC 2009

On Nov 30, 2009, at 12:35 PM, Bobby Schwartz wrote:

>> If you boot the live image, and the hdpvr is connected and powered on,
>> its driver should auto-load, but you'll still have to manually
> modprobe
>> lirc_zilog. After you do that, take a look at dmesg to see if
>> lirc_zilog claims to have found anything.
> Well I got around to this yesterday.  I did have to manually modprobe
> lirc_zilog.  It puked on the screen.  See /var/log/messages excerpt
> below.  I tried first loading the module THEN connecting USB and also
> connecting USB then loading the module.  Both resulted in the same
> error.  It appears that lirc_zilog finds the chip but errors trying to
> request IR blaster firmware.  I installed the PVR on a Windows system to
> update its firmware but I've never used the IR blaster in Windows.
> Something definitely seems to be missing from the Ubuntu side, however
> the Fedora side isn't working either.
> Nov 29 22:59:16 localhost kernel: Zilog/Hauppauge i2c IR 6-0071:
> firmware: requesting haup-ir-blaster.bin
> Nov 29 22:59:17 localhost kernel: lirc_zilog: firmware
> haup-ir-blaster.bin not available (-2)

Yeah, you're missing /lib/firmware/haup-ir-blaster.bin, has to be manually added to the system. Forgot to explicitly mention that part, sorry. Google knows where to find it.

> Nov 29 22:59:17 localhost kernel: BUG: unable to handle kernel NULL
> pointer dereference at 00000028

However, when the firmware is missing, we (lirc) need to handle this much more gracefully...

Jarod Wilson
jarod at wilsonet.com

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