Well, that was painful. After a full day working with the various cards, I managed to get all of them working. A couple of caveats: The analog tuner on the HVR-1250 isn’t supported yet. The composite and s-video inputs are working but the mt2131 driver doesn’t have the required support for tuning to analog stations…. Read More
cx23885
HVR-18×0 testing….
Ever wonder why it’s so common for somebody to check in a change to make some new product work, causing a regression in the tuner that *you* have? Well, here’s why: [lightbox title=”HVR-18×0 testing” href=”../../blog/wp-content/uploads/2012/06/cxboards1.jpg”][/lightbox] All these boards use the exact same driver, despite the fact that they have different core chips and only some… Read More
HVR-1800 analog debugging, part 2
When we last left off, we had reproduced the basic behavior that users reported, using the stock command line tools such as v4l2-ctl and “mplayer /dev/video1″. Now we’ll talk a bit about the debugging process. To give some context, let’s look at a quick diagram showing the various parts of the device: [lightbox title=”HVR-1800 analog… Read More
HVR-1800 analog debugging
As a result of numerous users reporting that their HVR-1800 didn’t work in analog mode, I finally got some time tonight to dig into the situation. If you don’t care about the details, the short answer is I’m working on it and be patient. If you want to get some insight into the gory debugging… Read More
HVR-1800/1850 Analog support
After quite some time of talking about it, we finally got around to getting the analog support for the HVR-1850 submitted upstream. Support for all things analog is present and tested on all the various input types: the MPEG encoder, raw capture, analog audio. This patch series also includes a fix for a long-standing regression… Read More
HVR1800 – A call for testers
So way back at the end of September, just after the Plumbers Conference 2009 I mentioned on the blog that we were taking another look at the HVR1800 raw audio and VBI support. Well it took a little longer than expected but yesterday we posted a cx23885-audio tree that contains two sets of important changes…. Read More
HVR1800 about to get analog audio and VBI support
Things are ticking along nicely here at KernelLabs. The Linux Plumbers Conference 2009 took up most of last week and aside from my posting replies here in the blog threads it feels like I haven’t posted here in a very long time. So what’s new you ask? From my perspective I took a look at… Read More
CX23888 IR support (Round 2)
Some interesting news over the last couple of days related to the recent CX23885 IR posting. Andy Walls contacted us and said he’s willing to develop support for IR on the Conexant CX23888 silicon, namely the HVR-1850. Andy is well known for his work in the cx18 / HVR-1600 driver. The CX23888 is a superset… Read More
HVR-1800 cleanups and HVR-1850 DTV support
KernelLabs have been cleaning up some cx23885 related bugs and adding support for DTV on the HVR-1850 Hauppauge board. The code changes are here and were sent today for review and merge into the mainline LinuxTV repositories. Here’s a summary of the merge request: – cx23885-417: fix broken IOCTL handling – cx23885: check pointers before… Read More
CX23885 IR Support
A handful of people have recently written asking for IR support on the cx23885 silicon. Either they’re asking for us to (#1) add direct support or (#2) they’re asking us to release the datasheet so they can perform the work themselves. With regards to (#1), this is something I think we’d like to do –… Read More