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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- enum{
- Undef = 0x80000000,
- Play = 0,
- Record = 1,
- };
- typedef struct Audiocontrol Audiocontrol;
- struct Audiocontrol {
- char *name;
- uint8_t readable;
- uint8_t settable;
- uint8_t chans; /* 0 is master, non-zero is bitmap */
- int32_t value[8]; /* 0 is master; value[0] == Undef -> all values Undef */
- int32_t min, max, step;
- };
- extern Audiocontrol controls[2][Ncontrol];
- extern int endpt[2];
- extern int interface[2];
- extern int featureid[2];
- extern int selectorid[2];
- extern int mixerid[2];
- extern int buttonendpt;
- int ctlparse(char *s, Audiocontrol *c, int32_t *v);
- void ctlevent(void);
- #pragma varargck type "A" Audiocontrol*
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