[linux-dvb] Anysee E30C Plus (Re: DVB-C developers interested in receiving an USB adapter for hacking?)]

Michael Krufky mkrufky at linuxtv.org
Sat Oct 13 22:53:33 CEST 2007

Antti Palosaari wrote:
> heips,
> hmm, now I am a little bit confused because there is this same id as MT352
> board. Maybe this is not just board id, but some other value that differs
> from design to design. Could it be firmware version...
> There is matrix I have now:
> board id model     demod    tuner module   PCB version
> 0a 01 00 E30C Plus TDA10023 DTOS403IH102A  507DC (REV 0.2)  Timo
> 02 02 01 E30       ZL10353  ?              PCB509T REV 1.61 Heikki
> 06 01 00 E30 Plus  ZL10353  DNOS404ZH103A  ?                Risto
> 02 02 01 E30       MT352    DNOS4D4ZH102A  ?                Mika (not sure
> if 02 02 02 because sniff is from other dev)
> CI board seems to be same design in both Plus models mentioned: 507_SM
> BOARD (V1.2).
> More reports needed.


This wouldn't be the first time that a vendor released a device without changing the product id, whose earlier revisions used an mt352, and later revisions used a zl10353.

I recommend that you handle it in the following way:

static int anysee_zl35x_frontend_attach(struct dvb_usb_adapter *adap)
	/* any device-specific stuff may go here */

	if (((adap->fe = dvb_attach(mt352_attach, &anysee_mt352_config,
				    &adap->dev->i2c_adap)) != NULL) ||
		((adap->fe = dvb_attach(zl10353_attach,
					&adap->dev->i2c_adap)) != NULL))
		return 0;

	return -EIO;

The _attach functions of each module tests the id register to ensure that the proper demod is actually present -- a few drivers are already doing this, such as dvb-usb-cxusb and dvb-bt8xx.  I think there are others as well...



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