diff options
Diffstat (limited to 'recipes-core/udev/files/colibri-imx7/toradex-adc.sh')
-rwxr-xr-x | recipes-core/udev/files/colibri-imx7/toradex-adc.sh | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/recipes-core/udev/files/colibri-imx7/toradex-adc.sh b/recipes-core/udev/files/colibri-imx7/toradex-adc.sh new file mode 100755 index 0000000..163b1ee --- /dev/null +++ b/recipes-core/udev/files/colibri-imx7/toradex-adc.sh @@ -0,0 +1,21 @@ +#!/usr/bin/env sh +# +# Called from udev. Compatible to colibri-imx7. +# +# Create/remove symlinks to/from the files with raw ain data. + +# Map the ADC lines: +# colibri-ain{0..3} -> ADC1_IN{0,1,2,3} +LINES=4 +START=0 + +if [ "$ACTION" = "add" ]; then + for idx in `seq 0 $((LINES-1))`; do + ln -s "/sys$DEVPATH/in_voltage$((START+idx))_raw" /dev/colibri-ain$idx + done +elif [ "$ACTION" = "remove" ]; then + for idx in `seq 0 $((LINES-1))`; do + rm -f /dev/colibri-ain$idx + done +fi + |