summaryrefslogtreecommitdiff
path: root/chip/lm4/lm4_adc.h
diff options
context:
space:
mode:
Diffstat (limited to 'chip/lm4/lm4_adc.h')
-rw-r--r--chip/lm4/lm4_adc.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/chip/lm4/lm4_adc.h b/chip/lm4/lm4_adc.h
index 69479ac265..770c984209 100644
--- a/chip/lm4/lm4_adc.h
+++ b/chip/lm4/lm4_adc.h
@@ -36,9 +36,6 @@ extern const struct adc_t adc_channels[ADC_CH_COUNT];
#define ADC_READ_MIN 0
#define ADC_READ_MAX 4095
-/* Value returned if the read failed. */
-#define ADC_READ_ERROR -1
-
/* Just plain id mapping for code readability */
#define LM4_AIN(x) (x)