[pvrusb2] How can I get detailed info like SNR, AGC from pvrusb2 package at USB hauppauge tuner?

[Mike Isely]

On Fri, 6 Jun 2008, Tina Ning wrote:

> Mike,
> 
> I saw for dvb tuner PCI card, it is possble to use DVB
> frontend of Linux kernel to get SNR & AGC information.
> Do you know if there is a way to get tuner status
> information from pvrusb2 sysfs? I hope to know its
> SNR, AGC value. I assume to get signal strength, I can
> use ioctl VIDIOC_G_TUNER to get such info. But I don't
> know how to get SNR, AGC info. 
> 

The DVB core is completely different than the V4L core, and the hardware 
in question is also completely different.  In this case you're talking 
about stats from the tuner; the pvrusb2 driver currently relies on the 
V4L core API (e.g. VIDIOC_G_TUNER) for such information.  If it isn't 
available via that function, then it probably isn't possible right now 
to retrieve it.  I imagine this isn't what you wanted to hear :-(

  -Mike


-- 

Mike Isely
isely @ pobox (dot) com
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