/usr/include/xorg/tda8425.h is in xserver-xorg-dev 2:1.16.4-1+deb8u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #ifndef __TDA8425_H__
#define __TDA8425_H__
#include "xf86i2c.h"
typedef struct {
I2CDevRec d;
int mux;
int stereo;
int v_left;
int v_right;
int bass;
int treble;
int src_sel;
Bool mute;
} TDA8425Rec, *TDA8425Ptr;
#define TDA8425_ADDR_1 0x82
/* the third parameter is meant to force detection of tda8425.
This is because tda8425 is write-only and complete implementation
of I2C protocol is not always available. Besides address there is no good
way to autodetect it so we have to _know_ it is there anyway */
#define xf86_Detect_tda8425 Detect_tda8425
extern _X_EXPORT TDA8425Ptr Detect_tda8425(I2CBusPtr b, I2CSlaveAddr addr,
Bool force);
#define xf86_tda8425_init tda8425_init
extern _X_EXPORT Bool tda8425_init(TDA8425Ptr t);
#define xf86_tda8425_setaudio tda8425_setaudio
extern _X_EXPORT void tda8425_setaudio(TDA8425Ptr t);
#define xf86_tda8425_mute tda8425_mute
extern _X_EXPORT void tda8425_mute(TDA8425Ptr t, Bool mute);
#define TDA8425SymbolsList \
"Detect_tda8425", \
"tda8425_init", \
"tda8425_setaudio", \
"tda8425_mute"
#endif
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