[PATCH] Re: [linux-dvb] [PATCH] Multi protocol support (stage #1)

Manu Abraham abraham.manu at gmail.com
Sun May 14 17:48:39 CEST 2006

Trent Piepho wrote:
> Can you show me, with code, what I would do to check if an ATSC tuner
> supports QAM-256?  I posted code to do this as an example for older versions,
> it should only be a couple lines.

At the driver side,

delsys.atsc.modulation = VSB8 | VSB16

at the application side,


if (delsys.atsc.modulation & VSB8)
driver supports VSB8

if (delsys.atsc.modulation & VSB16)
driver supports VSB16

FE_GET_INFO will get you additionally the name of the device and 
delivery systems. So you can alrenatively use FE_GET_INFO as well 
instead of FE_GET_DELSYS

Did i miss something out .. ?

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