Re: [Hamlib-developer] hamlib and microHAM interfaces

[Norvald H. R. <no...@ry...>]

On Fri, 15 Jul 2011 07:25:43 +0200
Thomas Beierlein <tb...@fo...> wrote:

> finally I got it working. After changing all printouts for pty numbers
> as discussed in last mail the program runs without problems. A quick
> check of rigctl with my TS-570D seems to work without problems.
> Congrats.

Great!

> I think next problem to solve is the PTT handling. I would like to use
> the digikeyer for PSK but it only outputs some audio signals if you
> turn on the internal PTT.

I agree. PTT devices are necessary.

> Well as written above that will not turn on audio output on the
> digikeyer.
> 
> Thats why I decided to *not* use PTY's but opt for the CUSE
> framework. With that you can export real serial interfaces from user
> land (by the help of a little kernel driver from CUSE) but the rogram
> will be somewhat more complex.
> 
> Maybe we should follow both routes (PTY and CUSE) do see which one
> works better.

I didn't know about the CUSE framework. At first glance it seems to
provide all that is necessary, while ptys don't. A switch to CUSE seems
like a good idea, but it requires some code to implement all common
ioctls for serial ports. If you want to start by making a
proof-of-concept PTT device, please do!

73 de LA6YKA