[linux-dvb] Re: Terratec Cinergy 1200 DVB-C Card supported?

[Markus Schulz <msc@antzsystem.de>]

Markus Schulz schrieb:
> In my last post something was wrong.
> No tuner will be found.
> I've forgot to set an correct return value for probe method.
Okay, the tuner will now be detected. (type = 0) (i'm also use the 
inittab from the 2.4er code)

probe_tuner code now is:(converted code from 2.4er modul)
****************************************
static int
test_tuner(struct i2c_adapter *i2c, long demod_addr, u8 addr)
{
  u8 buf[1]={ 0x00 };
  struct i2c_msg msg={.addr=addr, .flags=I2C_M_RD, .buf=buf, .len=1};
  u8 buf1[2] = { 0x0f, tda10021_inittab[0x0f]|0x80 };
  u8 buf2[2] = { 0x0f, tda10021_inittab[0x0f] & 0x7f };
  struct i2c_msg msg_pre =  {.addr=demod_addr, .flags=0, .buf=buf1, 
.len=2};
  struct i2c_msg msg_post = {.addr=demod_addr, .flags=0, .buf=buf2, 
.len=2};
	
  i2c_transfer(i2c, &msg_pre, 1);
  if (i2c_transfer(i2c, &msg, 1)!=1)
    return -1;

  i2c_transfer(i2c, &msg_post, 1);
  return 0;
}

static long probe_tuner(struct i2c_adapter *i2c, long demod_addr)
{
	int type=0;
	u8 addr;
	for(addr=0x60;addr<0x64;addr++,type++)
	{
		if(!test_tuner(i2c, demod_addr, addr))
		{
			printk("tda10021: tuner type %d found\n", type);
			return type;
		}
	}
	printk("tda10021: no valid tuner type found\n");
	return -1;
}

now i'm converting the set_frequency code.
it seems to me that every i2c transfer must be begin with an initial 
register set before and reset after the call.(taken from 2.4er code)

Markus