Re: A driver for TI WL1273 FM Radio

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On Friday 23 October 2009 09:45:53 m7aalton wrote:
> Hi.
> 
> I have written a driver for the TI WL1273 FM Radio but it's not yet
> quite ready for up-streaming because of its interface. Now I've started
> to change the interface to v4l2 and I'm following Eduardo Valentin's
> Si4713 TX driver as an example. However, WL1273 radio has RX and TX so
> there are things that Eduardo's driver doesn't cover. For example: the
> driver needs a mode switch for switching between TX and RX. Should that
> be implemented as an extended control or should there be a new IOCTL
> added to the v4l2 API? etc...

So if I understand this correctly, then this device can only transmit or
receive, but not both at the same time?

If that's the case, then I wonder if it isn't enough to let it depend on
whether VIDIOC_S_AUDOUT or VIDIOC_S_AUDIO was called last.

> Also I've added some things to the ivtv-radio tool. Should I try to
> "up-stream" those as well?

Perhaps we should take the opportunity to merge this tool as v4l2-radio
into the v4l2-apps/util directory of the master v4l-dvb repository.

It would be really nice if it can be used to test the transmitter
features and RDS receiver as well, i.e. extending and improving this tool.

I like having such fairly low-level and easy to debug utilities. They are
a great tool to verify the proper functioning of hardware like this.

Regards,

	Hans

-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom
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