NI6143_CALIB_CHAN
#define NI6143_CALIB_CHAN_GND_GND NI6143_CALIB_CHAN(0) /* Offset Cal */
#define NI6143_CALIB_CHAN_2V5_GND NI6143_CALIB_CHAN(2) /* 2.5V ref */
#define NI6143_CALIB_CHAN_PWM_GND NI6143_CALIB_CHAN(5) /* +-5V Self Cal */
#define NI6143_CALIB_CHAN_2V5_PWM NI6143_CALIB_CHAN(10) /* PWM Cal */
#define NI6143_CALIB_CHAN_PWM_PWM NI6143_CALIB_CHAN(13) /* CMRR */
#define NI6143_CALIB_CHAN_GND_PWM NI6143_CALIB_CHAN(14) /* PWM Cal */