Hardware Reference
In-Depth Information
3.
The Z button is interpreted as the left-click button, while the
C button is the right-click button.
4.
No keystrokes are injected by this program, but it can be
modified to do so. The function
uinput_postkey()
on line 244
can be used for that purpose.
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nunchuk.c: Read events from nunchuck and stuff as mouse events
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4
5 #include <stdio.h>
6 #include <math.h>
7 #include <stdlib.h>
8 #include <fcntl.h>
9 #include <unistd.h>
10 #include <string.h>
11 #include <errno.h>
12 #include <signal.h>
13 #include <assert.h>
14 #include <sys/ioctl.h>
15 #include <linux/i2c−dev.h>
16 #include <linux/input.h>
17 #include <linux/uinput.h>
18
19 #include "timed_wait.c"
20
21 static int is_signaled = 0; /
Exit program if signaled
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22 static int i2c_fd = −1; /
Open/dev/i2c−1 device
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23 static int f_debug = 0; /
True to print debug messages
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24
25 typedef struct {
26 unsigned char stick_x; /
Joystick X
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27 unsigned char stick_y; /
Joystick Y
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28 unsigned accel_x; /
Accel X
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29 unsigned accel_y; /
Accel Y
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30 unsigned accel_z; /
Accel Z
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31 unsigned z_button:1; /
Z button
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32 unsigned c_button:1; /
C button
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33 unsigned char raw[6]; /
Raw received data
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34 } nunchuk_t;
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36 /
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37
Open I2C bus and check capabilities:
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38
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39 static void
40 i2c_init(const char
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node) {
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