diff options
| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2020-08-06 16:27:35 +0300 |
|---|---|---|
| committer | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2020-08-10 13:11:02 +0300 |
| commit | 26f58c5c34bac69c1a9b312242e92decd532cd14 (patch) | |
| tree | 56615e82a71781b7fd26bf97df8ea9048cc77d94 | |
| parent | eaf8ba320beef0b0ad59e7911b4684c793b0a4f3 (diff) | |
colibri-imx6ull: udev: add symlink to adc raw data
Create symlinks for each supported by Colibri iMX6ULL ADC channels,
standardizing names as colibri-ainX, according to the Colibri signal
names table.
Related-to: ELB-2839
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
| -rw-r--r-- | recipes-core/udev/files/colibri-imx6ull/99-toradex.rules | 1 | ||||
| -rwxr-xr-x | recipes-core/udev/files/colibri-imx6ull/toradex-adc.sh | 21 |
2 files changed, 22 insertions, 0 deletions
diff --git a/recipes-core/udev/files/colibri-imx6ull/99-toradex.rules b/recipes-core/udev/files/colibri-imx6ull/99-toradex.rules index 1240752..c91f750 100644 --- a/recipes-core/udev/files/colibri-imx6ull/99-toradex.rules +++ b/recipes-core/udev/files/colibri-imx6ull/99-toradex.rules @@ -5,3 +5,4 @@ ACTION=="add", ATTRS{iomem_base}=="0x21E8000", SYMLINK+="colibri-uartb" ACTION=="add", ATTRS{iomem_base}=="0x21F4000", SYMLINK+="colibri-uartc" ACTION=="add", KERNELS=="20bc000.wdog", SYMLINK+="colibri-watchdog" ACTION=="add", SUBSYSTEM=="spidev", KERNELS=="2008000.*spi", SYMLINK+="colibri-spi-cs%n" +SUBSYSTEM=="iio", KERNELS=="iio:device0", RUN+="/etc/udev/scripts/toradex-adc.sh" diff --git a/recipes-core/udev/files/colibri-imx6ull/toradex-adc.sh b/recipes-core/udev/files/colibri-imx6ull/toradex-adc.sh new file mode 100755 index 0000000..b56593f --- /dev/null +++ b/recipes-core/udev/files/colibri-imx6ull/toradex-adc.sh @@ -0,0 +1,21 @@ +#!/usr/bin/env sh +# +# Called from udev. Compatible to colibri-imx8x. +# +# Create/remove symlinks to/from the files with raw ain data. + +# Map the ADC lines: +# colibri-ain{0..3} -> ADCx_IN{0,1,8,9} + +if [ "$ACTION" = "add" ]; then + ln -s "/sys$DEVPATH/in_voltage0_raw" /dev/colibri-ain0 + ln -s "/sys$DEVPATH/in_voltage1_raw" /dev/colibri-ain1 + ln -s "/sys$DEVPATH/in_voltage8_raw" /dev/colibri-ain2 + ln -s "/sys$DEVPATH/in_voltage9_raw" /dev/colibri-ain3 +elif [ "$ACTION" = "remove" ]; then + rm -f /dev/colibri-ain0 + rm -f /dev/colibri-ain1 + rm -f /dev/colibri-ain2 + rm -f /dev/colibri-ain3 +fi + |