On 06/21/2011 12:25 AM, Antti Palosaari wrote:
On 06/21/2011 12:20 AM, Rune Evjen wrote:
2011/6/20 Antti Palosaari<cr...@iki.fi>:
LNA is controlled by demod GPIO line. I don't remember if it is on or
off
for DVB-C currently. Look em28xx-dvb.c file, you can disable or
enable it
from there (needs re-compiling driver).
I also saw BER counter running some muxes during development, but I
think
all channels I have are still working. And I didn't even have time to
optimal parameters for tuner / demod. I will try to examine those
later...
Thank you Antti,
I will test with lna disabled in the em28xx-dvb module
In line 349 of the code, I see this:
/* enable LNA for DVB-T2 and DVB-C */
.gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
.gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
I suspect I should modify line 351, what should it be changed to ?
Remove corresponding line (.gpio_dvbc[0]).
Or change CXD2820R_GPIO_L => CXD2820R_GPIO_H. Have to check that too, I
suspect removing it leaves it Hi-Z (which could result same).
Antti
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