At Tue, 31 Mar 2015 19:35:05 +0200, Fulup Ar Foll wrote:

Hi, I would need some help to finish a json version of amixer. Porting cget is done, but for cset I have an issue with "snd_hctl_find_elem (handle, id)". I'm not sure what's the right method to pass it. I've tried every options I could imagine. But if it works on Mint/32bit, it miserably fail on OpenSuse/64.

Hm, there are no much difference about these APIs. What error did you get?

Furthermore amixer.c as this strange comment /* FIXME: Remove it when hctl find works ok !!! */ and they do not use snd_hctl_find_elem.

I don't remember why it's commented so. The line was added 14 years ago :)

Takashi

I posted a small C code to highlight the issue at [1]https://gist.github.com/fulup-bzh/891e5627be325150337f My question is simple, did I miss something ? should I move to lower level API ? Note: While the painting for my json-gateway is not dry, I nevertheless pushed a initial running version with cget at [2]https://github.com/fulup-bzh/AlsaJsonGateway I also have a small HTML5/UI at [3]http://breizhme.net/alsajson/mixers/ajg#/scarlett?card=2 While UI code is very dependant on each soundcard [in my case Scarlett/Focurite] the Json-Gateway is 100% independent of the board. If anything one have an idea, please let me know. Fulup

References

1. https://gist.github.com/fulup-bzh/891e5627be325150337f
2. https://github.com/fulup-bzh/AlsaJsonGateway
3. http://breizhme.net/alsajson/mixers/ajg#/scarlett?card=2

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