USRP channel driver

App_rpt-users
1

I am working on a project that uses the USRP protocol, and would like to support ASL as a client, but the current USRP channel driver does not implement some of the functionality required by the protocol, and is in need of some enhancements. I have code that I can contribute, who do I get in touch with to get started? Tnx, de VE6VH.

2

I would think that you will need to write your own version of usrp module for asterisk
see /etc/asterisk/modules.conf
load => chan_usrp.so ; GNU Radio interface USRP Channel Driver

While I could be wrong, I believe it to be created by the gnu radio folks.
I’m sure there are proper credits if you look into it.
It is a accepted standard worldwide for many things outside of app_rpt/asl, even if it needs updating for your purpose.

3

The USRP channel driver was written my Max KA1RBI. DVSwitch also uses the USRP channel driver. I can’t speak for the AllStarLink dev team,.but we would WELCOME any enhancements that did not break existing functionality.

Steve N4IRS

4

There are a couple of schools of thought on how to proceed; one is to enhance the current driver to add functionality, the other is to write a new driver. Either one could be installed by simply modifying modules.conf. I am leaning towards the latter.

5

Contributions are welcome.

It would also be very cool to have folks fix some minor issues, package up images and get ASL 2.0 out of beta.

6

Does anyone know how to set an option on a channel driver, ie invoke the set_options routine as defined in the channel_tech struct? I am trying to get some DTMF processing to work…Tnx.

7

While I do not know for sure, as I have never played with the channel drivers,
But I don’t think you will get that kind of input unless you rewrite the channel driver.
I think you are stuck with parms that are static loaded when initialized.
As I said, I could be wrong about that.

In that mindset, if you find this to be correct,
you might try setting/reading a global asterisk var with the altered channel driver that can be changed via dtmf.

8

FYI I am writing a custom channel driver.

9

I understood that to be the case.
Good Luck.