1. Home
  2. Raspberry Pi Group
  3. Installing ALSA libraries

Installing ALSA libraries

Since the package for xoscope doesn't include ALSA support I tried downloading the latest sources. Looks like that doesn't find the required ALSA libraries, if I understand the instructions for compiling correctly. There doesn't seem to be a configure option for ALSA support, instead configure looks for libraries and builds for what it finds. At this point configure reports, in part:

ALSA module: no COMEDI module: no

An apt search for ALSA turns up lots of applications that use it, but I don't recognize a generic installation target. What am I missing?

Thanks for reading

bob prohaska

Reply to
bob prohaska
Loading thread data ...

libasound2-dev is the one I guess

Reply to
Deloptes

libasound* works for *most* alsa. When I was playing with it I needed something else, but that *may* not have been alsa related...

--
Microsoft : the best reason to go to Linux that ever existed.
Reply to
The Natural Philosopher

don't know what you mean by most - this is the alsa library headers needed for compiling with alsa support

for comedy it is self explaining

libcomedi-dev - Development library for Comedi

however there is possibility that a specific version is required and the autotools system still does not find what it is configured to look for. You have then the option to look into the autotools config files and solve the dependencies in detail.

Reply to
Deloptes

you should post relevant parts of the error output so we can see what it failed to find and/or what other errors are related

--
(aka 'Bombastic Bob' in case you wondered) 

'Feeling with my fingers, and thinking with my brain' - me
 Click to see the full signature
Reply to
Big Bad Bob

That was the confusing part. There were no errors of any kind reported.

Both libasound2-dev and libcomedi-dev are available and installed without problems. The configure script reported finding both of them and make completed without complaint.

The resulting binary runs and displays in a reasonable fashion. It seems that ALSA works somewhat better, in the sense of giving a recognizable disply to a squarewave input more easily. It's possible to switch to COMEDI device mode, but the display seems unresponsive. Since I'm dealing with a sound capture device that's not very strange.

Thanks very much for everyone's help!

bob prohaska

Reply to
bob prohaska

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.