ref: 11729e23cb62f2e262afd4580906b6aca4f7a113
dir: /kern/devaudio.h/
enum { Fmono = 1, Fin = 2, Fout = 4, Vaudio = 0, Vsynth, Vcd, Vline, Vmic, Vspeaker, Vtreb, Vbass, Vspeed, Vpcm, Nvol, }; void audiodevopen(void); void audiodevclose(void); int audiodevread(void*, int); int audiodevwrite(void*, int); void audiodevgetvol(int, int*, int*); void audiodevsetvol(int, int, int);