[linux-dvb] dvb-h demodulator commercially available and supported by linux driver?!

Andrea Venturi a.venturi at cineca.it
Thu Nov 10 18:01:16 CET 2005


hi,

here in italy, many dvb-h trials are springing all over..

i'm wondering if there's already a dvb-h compliant (at least supporting
4k) demodulator available on the market, and with a linux driver ready..

for example i know the dibcom family:

http://195.137.248.72/539_Dibcom/Website/site/eng_accueil_applicationsproducts_products_chipset.htm

in this table, i can see both dibcom dib7000-h dib7000-m are supposed to
be "dvb-h" compliant

i've just checked in linux-dvb CVS, and actually there's nothing about
these chips, but there is already the dibcom3000mc driver, so, maybe the
path is ready, but, if i can elaborate, the registry actually carries
just one bit for the transmission mode (switching from 2k - 8k)

============
#define __DIB3000MC_PRIV_H__

/*
 * Demodulator parameters
 * reg: 0  1 1  1 11 11 111
 *         | |  |  |  |  |
 *         | |  |  |  |  +-- alpha (000=0, 001=1, 010=2, 100=4)
 *         | |  |  |  +----- constellation (00=QPSK, 01=16QAM, 10=64QAM)
 *         | |  |  +-------- guard (00=1/32, 01=1/16, 10=1/8, 11=1/4)
 *         | |  +----------- transmission mode (0=2k, 1=8k)
 *         | |
 *         | +-------------- restart autosearch for parameters
 *         +---------------- restart the demodulator
 * reg: 181      1 111 1
 *               |  |  |
 *               |  |  +- FEC applies for HP or LP (0=LP, 1=HP)
 *               |  +---- FEC rate (001=1/2, 010=2/3, 011=3/4, 101=5/6,
111=7/8)
 *               +------- hierarchy on (0=no, 1=yes)
 */
=============

anyway, do you know if this dvb-h thing is going to run (soon or later)
on linux devices?

do you know of a ready available HW (PCMCIA/USB) external adapter for pc?

thank you for your attention.

andrea venturi



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