Re: RTL28XX driver

[Antti Palosaari <crope@iki.fi>]

On 18.04.2012 20:18, Thomas Mair wrote:
> I have been working on the driver over the past days and been making
> some progress. Right now I am stuck with a small problem that I have
> no idea how to deal with.
>
> It seems that the fc0012 tuner supports V-Band and U-Band. To switch
> between those modes a GPIO output value needs to be changed. In the
> original Realtek driver this is done at the beginning of the
> set_parameters callback. Is there a different callback that can be
> used for this or is it ok to write a RTL2832u register from the
> demodulator code?

Aah, I suspect it is antenna switch or LNA GPIO. You don't say what is 
meaning of that GPIO...
If it is FC0012 input, which I think it is not, then you should use FE 
callback (named as callback too) with  DVB_FRONTEND_COMPONENT_TUNER 
param. But I suspect it is not issue.

So lets introduce another solution. It is fe_ioctl_override. Use it.

You will find good examples both cases using following GIT greps
git grep fe_ioctl_override drivers/media
git grep FRONTEND_COMPONENT

Antti
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