While Steven continues to churn away on ALSA audio and VBI support for the HVR-1800, I have started working on a project to do ALSA audio for the HVR-1600. So if you have an interest in being able to use the raw analog video capabilities for the 1600, stay tuned! The call for testers for… Read More
s5h1409
Call for Testers: HVR-1600 Improvements
If you are an HVR-1600 user who has noticed the ClearQAM tuning performance under Linux was worse than under Windows, this should make you happy. As a result of the work described in the previous post, there is now a tree that contains the various fixes: http://www.kernellabs.com/hg/~dheitmueller/hvr-1600-perf-2 The goal is to submit this upstream, but… Read More
HVR-1600 Performance and Reverse Engineering
Haven’t had much time to update the blog lately. All week I’ve been quietly grinding away at two basic issues: PAL VBI support for the em28xx chip, and identifying/addressing the HVR-1600 performance problem. I often get questions from users along the lines of “how do you make boards work?”. Reverse engineering is a bit of… Read More
ATSC signal strength patches
I’ve decided to post some patches that attempt to bring some consistency across the atsc demodulator drivers in the signal strength reporting mechanism. Signal strength is calculated as a percentage from SNR up to 35 dB. As indicated in the comments inside the drivers, “Even though the SNR can go higher than 35dB, there is some comfort factor in having a range of strong signals that can show at 100%”