I am able to detect two lgdt3304 one on each i2c bus now. As you suspected I had to set GPIO pin 17 for them to come alive. Now to my next question, how do I attach two front ends I have two lgdt3304 and two TDA18271HD/C2 Is there a good driver I can look at where they do that ? Thanks /// Carl -----Original Message----- From: Devin Heitmueller [mailto:dheitmueller@xxxxxxxxxxxxxx] Sent: Thursday, June 27, 2013 1:59 PM To: Carl-Fredrik Sundstrom Cc: linux-media@xxxxxxxxxxxxxxx Subject: Re: lgdt3304 On Thu, Jun 27, 2013 at 2:38 PM, Carl-Fredrik Sundstrom <cf@xxxxxxxxxxxxxxxxxxxx> wrote: > > Has the driver for lgdt3304 been tested ? I am trying to get a new > card working > > AVerMedia AVerTVHD Duet PCTV tuner (A188) A188-AF PCI-Express x1 > Interface > > It is using > > 1 x saa7160E > 2 x LGDT3304 > 2 x TDA18271HD/C2 > > I get so far that I can load a basic driver by modifying the existing > saa716x driver, I can detect the TDA18271HD/C2, but I fail to detect > the > LGDT3304 when attaching it using the 3305 driver. > > I always fail at the first read from LGDT3305_GEN_CTRL_2, does this > register even exist in lgdt3304 or is it specific to lgdt3305? > > /* verify that we're talking to a lg dt3304/5 */ > ret = lgdt3305_read_reg(state, LGDT3305_GEN_CTRL_2, &val); > if ((lg_fail(ret)) | (val == 0)) > { > printk("fail 1\n"); > goto fail; > } > > Since I do find the TDA18271HD/C2 I don't think there is something > wrong with the i2c buss. I also tried every possible i2c address without success. > The lgdt3305 has option between address 0x0e and 0x59, is it the same > for > 3304 ? > > This is the first time I am trying to get a driver to work in Linux. > Please help me. Either the i2c is broken or the lgdt3304 is being held in reset by a GPIO. Also, that device has multiple i2c busses, so you could be looking on the wrong bus. Do you see *any* i2c devices (such as an eeprom). Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
