Diseqc not working with HD-Star

[dio-k]

I have done some testing with Diseqc in DVBViewer using the USB HD-STAR DVB-S2 receiver. There is a BUFFER TOO SMALL error in the communication with the driver. I have been able to replicate this error using my own C++ code and it is easily corrected. Full details are in the attached PDF.

 

HDStar-Diseqc-Problem.pdf

support.zip

 

DIO-K

[Griga]

Thanks for the informative PDF!

 

DVBViewer 4.5 doesn't support GeniaTech DiSEqC yet. So I guess some other (non-matching) DiSEqC method is applied, if at all. Maybe a Debug.log will clarify what is actually happening (see Startmenu -> DVBViewer Program Group).

[dio-k]

Griga

 

Attached a debug.log. I started DVBViewer on a channel on Astra 19.2 and then changed to a channel on Astra 23.5.

 

debug.log

[Griga]

DeviceSendDiSEqCCommand vdConexant

DVBViewer 4.5 tries to handle DiSEqC with a method that is suitable for the Conexant reference driver - similar to what is required for GeniaTech, but the DiSEqC data structure is different (and a bit smaller). DVBViewer queries the tuner filter's input pin for IKSPropertySet and sends the data to the driver by calling IKsPropertySet.Set, using KSP_NODE as instance data.

 

The GeniaTech data structure is identical with the one required for Hauppauge DVB-S devices. That's why it works in TransEdit with the Vendor.0=2 tweak. DVBViewer Pro doesn't provide such a tweak. However, the next service update will contain a new (and more flexible resp. updatable) hardware handling, including GeniaTech DiSEqC support.

[dio-k]

Thanks. Good stuff. I look forward to the update. If I can help with testing let me know.

 

Dio-K

[dio-k]

I can confirm that this problem is resolved in the DVBViewer Recording Service 1.6.8.0 beta