Re: [PATCH v2 00/10] add linux driver for chip TLG2300

[Huang Shijie <shijie8@gmail.com>]

> The differences of FM radio standards are basically the preemphasis and the
> frequency ranges.
>
> For frequency ranges, V4L2_TUNER_RADIO allows specifying the maximum/minimum values.
>
> For preemphasis, you should implement V4L2_CID_TUNE_PREEMPHASIS ctrl. This
> CTRL has 3 states:
>
>          static const char *tune_preemphasis[] = {
>                  "No preemphasis",
>                  "50 useconds",
>                  "75 useconds",
>                  NULL,
>          };
>
> At v4l2-common.c, there are some functions that helps to implement it
> at the driver, like:
> 	v4l2_ctrl_get_menu, v4l2_ctrl_get_name and v4l2_ctrl_query_fill.
>
> Take a look at si4713-i2c.c for an example on how to use it.
>
>    
Thanks you very much for the explanation.
> Ah, please submit those changes as another series of patches. This helps me
> to not needing to review the entire changeset again.
>
>    
Ok.  no problem.
> Cheers,
> Mauro
>
>    
Best Regards
Huang Shijie