Hi, hauppauge win tv Nova-s plus won't tune

There is a bug in the cx24123 driver. It does not generate the 22KHz tone for high-band. This seems to date back to changeset 4012. This removed the code which used the ISL6421 tone generator. I presume the intention was to transfer this function to the isl6421 module, but this wasn't done. I tested this with a function as follows:

static int isl6421_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)

{
	struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
	struct i2c_msg msg = {	.addr = isl6421->i2c_addr, .flags = 0,
				.buf = &isl6421->config,
				.len = sizeof(isl6421->config) };

	switch (tone) {
	case SEC_TONE_ON:
		isl6421->config |= ISL6421_ENT1;
		break;
	case SEC_TONE_OFF:
		isl6421->config &= ~ISL6421_ENT1;
		break;
	default:
		return -EINVAL;
	}

	isl6421->config |= isl6421->override_or;
	isl6421->config &= isl6421->override_and;

	return (i2c_transfer(isl6421->i2c, &msg, 1) == 1) ? 0 : -EIO;
}

and added it to the override ops. This works fine for me and I am now getting lock on high-band transponders, but it is probably just the easy part as I have no idea how DiSEqC Encoding should be handled, nor how to manage overrides for other cards which use this driver, but may not want it to generate tones.

Roland, if your low-band transponders are also failing, that is another issue!

This is a known bug in latest Ubuntu release and not related to DVB.

Regards, John

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