am335x_permissions.sh

#!/bin/bash

if [ ! -d /dev/pwm/ ] ; then
	mkdir -p /dev/pwm/
fi

#v5.4.x
if [ -d /sys/devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/ ] ; then
	base_dir="/sys/devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/"
fi

check_module_dir (){
	if [ -d ${base_dir}/${module}/${pwm_node} ] ; then
	        label=$(ls ${base_dir}/${module}/${pwm_node}/ | grep pwm || true)
	        if [ ! "x${label}" = "x" ] ; then
			ls ${base_dir}/${module}/${pwm_node}/${label}
        	        subnode=$(ls ${base_dir}/${module}/${pwm_node}/${label} | grep pwm | grep ${pwm_offset} || true)
	                if [ ! "x${subnode}" = "x" ] ; then
                	        echo "/bin/ln -sT /sys/class/pwm/${label}/${subnode} /dev/pwm/${pwm_label}"
        	                /bin/ln -sT /sys/class/pwm/${label}/${subnode} /dev/pwm/${pwm_label}
	                fi
        	fi
	        echo $label
	fi

}

module="48300000.target-module/48300000.epwmss"
pwm_node="48300100.ecap/pwm"
pwm_offset=":0"
pwm_label="ecap0"
check_module_dir

pwm_node="48300200.pwm/pwm"
pwm_offset=":0"
pwm_label="ehrpwm0a"
check_module_dir

pwm_node="48300200.pwm/pwm"
pwm_offset=":1"
pwm_label="ehrpwm0b"
check_module_dir


module="48302000.target-module/48302000.epwmss"
pwm_node="48302100.ecap/pwm"
pwm_offset=":0"
pwm_label="ecap1"
check_module_dir

pwm_node="48302200.pwm/pwm"
pwm_offset=":0"
pwm_label="ehrpwm1a"
check_module_dir

pwm_node="48302200.pwm/pwm"
pwm_offset=":1"
pwm_label="ehrpwm1b"
check_module_dir

module="48304000.target-module/48304000.epwmss"
pwm_node="48304100.ecap/pwm"
pwm_offset=":0"
pwm_label="ecap2"
check_module_dir

pwm_node="48304200.pwm/pwm"
pwm_offset=":0"
pwm_label="ehrpwm2a"
check_module_dir

pwm_node="48304200.pwm/pwm"
pwm_offset=":1"
pwm_label="ehrpwm2b"
check_module_dir