I need a programmatic way to change the master volume control from a C program. At the moment I'm fork()ing and exec()ing
/usr/bin/amixer --quiet set Master xx% which works, but sometimes does nothing because the resolution of the card is insufficient. Now I could parse the output of /usr/bin/amixer get Master to find out the limits of the volume control on the board, but that's messy in C and I'd rather do it properly. Anyway, I need C functions to: Mute all sound unMute all sound get current volume level get max volume level get min volume level (only if it's ever not zero) set current volume level I know these are possible because other apps use them... However I have not been able to find a simple way to do this. Ideally I need the code to do this for both alsa 0.5 which we use here at the moment, and alsa 0.9. The target application is a little daemon to use the media keys on recent keyboards to control alsa and xmms, as a bribe I'll be releasing the code under the GPL as soon as get the volume changing code ;-). Regards, Philip Willoughby Systems Programmer, Department of Computing, Imperial College, London, UK -- echo [EMAIL PROTECTED] | tr "bizndfohces" "pwgd9ociaku" Why reinvent the wheel? . . . . . . . . . Because we can make it rounder... ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
