[asterisk-dev] Help for developing a channel driver module

[Gilles Mazoyer]

Hi

Thank you for the information.
That's what i already do so no need to change my module. Good !!!

BR


On 2016-05-22 16:36, Joshua Colp wrote:
> Gilles Mazoyer wrote:
>> Hi
>> 
>> I'm developping a channel module to add support for telephony on modem
>> HW553 running OpenWrt.
>> My project is hosted on github 
>> https://github.com/pgid69/bcm63xx-phone.
>> Today the channel seems to work but i'm not sure that it's very 
>> efficient.
>> So I wanted to known if there is guideline for developping a channel 
>> module
>> More specifically
>> - does my channel module must provide a file descriptor to Asterisk,
>> used in ast_waitfor() ?
>> All channel modules but chan_local provide at least one file 
>> descriptor
>> (calling ast_channel_set_fd());
>> - should my channel pass audio data that it receives as fast as 
>> possible
>> to Asterisk (using ast_queue_frame()) or should it wait that asterisk
>> call the read callback ?
> 
> You can use either mechanism and which is right depends on the
> underlying channel driver. If you put a file descriptor on the channel
> then when there is data to be read your read callback will be called.
> If you don't then you have to queue up the frames.
> 
> --
> Joshua Colp
> Digium, Inc. | Senior Software Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - US
> Check us out at: www.digium.com & www.asterisk.org