File content as of revision 0:2ae25badaf6a:

#define PCA9956A_ADDR 0x02

#define MODE1            0x00
#define MODE2            0x01
#define LEDOUT0          0x02
#define LEDOUT1          0x03
#define LEDOUT2          0x04
#define LEDOUT3          0x05
#define LEDOUT4          0x06
#define LEDOUT5          0x07
#define GRPPWM           0x08
#define GRPFREQ          0x09
#define PWM0             0x0A
#define PWM1             0x0B
#define PWM2             0x0C
#define PWM3             0x0D
#define PWM4             0x0E
#define PWM5             0x0F
#define PWM6             0x10
#define PWM7             0x11
#define PWM8             0x12
#define PWM9             0x13
#define PWM10            0x14
#define PWM11            0x15
#define PWM12            0x16
#define PWM13            0x17
#define PWM14            0x18
#define PWM15            0x19
#define PWM16            0x1A
#define PWM17            0x1B
#define PWM18            0x1C
#define PWM19            0x1D
#define PWM20            0x1E
#define PWM21            0x1F
#define PWM22            0x20
#define PWM23            0x21
#define IREF0            0x22
#define IREF1            0x23
#define IREF2            0x24
#define IREF3            0x25
#define IREF4            0x26
#define IREF5            0x27
#define IREF6            0x28
#define IREF7            0x29
#define IREF8            0x2A
#define IREF9            0x2B
#define IREF10           0x2C
#define IREF11           0x2D
#define IREF12           0x2E
#define IREF13           0x2F
#define IREF14           0x30
#define IREF15           0x31
#define IREF16           0x32
#define IREF17           0x33
#define IREF18           0x34
#define IREF19           0x35
#define IREF20           0x36
#define IREF21           0x37
#define IREF22           0x38
#define IREF23           0x39
#define OFFSET           0x3A
#define SUBADR1          0x3B
#define SUBADR2          0x3C
#define SUBADR3          0x3D
#define ALLCALLADR       0x3E
#define PWMALL           0x3F
#define IREFALL          0x40
#define EFLAG0           0x41
#define EFLAG1           0x42
#define EFLAG2           0x43
#define EFLAG3           0x44
#define EFLAG4           0x45
#define EFLAG5           0x46