tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __INCLUDED_TDA9840__
2#define __INCLUDED_TDA9840__
3
4#define I2C_ADDR_TDA9840 0x42
5
6#define TDA9840_DETECT _IOR('v',1,int)
7/* return values for TDA9840_DETCT */
8#define TDA9840_MONO_DETECT 0x0
9#define TDA9840_DUAL_DETECT 0x1
10#define TDA9840_STEREO_DETECT 0x2
11#define TDA9840_INCORRECT_DETECT 0x3
12
13#define TDA9840_SWITCH _IOW('v',2,int)
14/* modes than can be set with TDA9840_SWITCH */
15#define TDA9840_SET_MUTE 0x00
16#define TDA9840_SET_MONO 0x10
17#define TDA9840_SET_STEREO 0x2a
18#define TDA9840_SET_LANG1 0x12
19#define TDA9840_SET_LANG2 0x1e
20#define TDA9840_SET_BOTH 0x1a
21#define TDA9840_SET_BOTH_R 0x16
22#define TDA9840_SET_EXTERNAL 0x7a
23
24/* values may range between +2.5 and -2.0;
25 the value has to be multiplied with 10 */
26#define TDA9840_LEVEL_ADJUST _IOW('v',3,int)
27
28/* values may range between +2.5 and -2.4;
29 the value has to be multiplied with 10 */
30#define TDA9840_STEREO_ADJUST _IOW('v',4,int)
31
32/* currently not implemented */
33#define TDA9840_TEST _IOW('v',5,int)
34
35#endif