[mythtv-users] HD PVR and IR transmitter for channel change (why)

Ramin K ramin-list at badapple.net
Thu Dec 16 23:40:26 UTC 2010

On 12/16/2010 3:21 PM, David McMillan wrote:
>> The HD-PVR that returns 4903 says Rev F1 on the bottom rather than Rev E3
>> which is what the last 4902 machines had on their sticker. As far as I can
>> tell there is no difference in functionality and I'm using them
>> interchangeably with IR under Fedora 14.
> Ramin,
> Did you install anything custom in Fedora 14 related to the hdpvr or
> lirc related kernel modules?

Nope, bone stock. I do have a recent kernel revision though and sudo 
modprobe lirc_zilog as well since I haven't figured out where to put 
that so it loads on boot. I also flashed both HDPVRs to 0x15, used the 
standard lircd.conf, and dropped the firmware in /lib/firmware.

ramin at hdmedia.home ~ $ uname -a
Linux hdmedia.home.badapple.net #1 SMP Fri Dec 3 
12:19:41 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux

ramin at hdmedia.home ~ $ rpm -qa | grep kernel

ramin at hdmedia.home ~ $ lsmod
lirc_zilog             14200  0
lirc_dev               15776  1 lirc_zilog
hdpvr                  21258  0
v4l2_common            16581  1 hdpvr
videodev               41889  2 hdpvr,v4l2_common
v4l1_compat            12970  1 videodev
v4l2_compat_ioctl32     9853  1 videodev
i2c_core               26900  4 lirc_zilog,hdpvr,v4l2_common,videodev

I was actually surprised how well it worked out of the box so to speak. 
I struggled heavily with Ubuntu 10.04/10.10 originally. Rebuilding the 
kernel modules to recognize 4903 wasn't hard, but decided installing 
2.6.37-rc via PPA woudld be easier to maintain as modules were updated 
in mainline Linux kernel sources. IR was a total mess under Ubuntu. 
After 20-30 hours of futzing with source code I decided I could live 
with an unfamiliar distro as long as it worked. :-)


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