44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
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#! /bin/sh
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[ "$SUBSYSTEM" -ne "tty" ] && exit 0
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if [ -z "$MAJOR" ] || [ -z "$MINOR" ]; then
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exit 0
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fi
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MAJOR_HEX=$(echo $(printf %2x "$MAJOR"))
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MINOR_HEX=$(echo $(printf %2x "$MINOR"))
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# env | while read line; do
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# logger -t "$0" "$line"
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# done
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case "$ACTION" in
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add)
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dev_root="/sys/$DEVPATH/../../../../"
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itf_root="/sys/$DEVPATH/../../../"
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vid="$(cat $dev_root/idVendor 2> /dev/null)"
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pid="$(cat $dev_root/idProduct 2> /dev/null)"
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serial="$(cat $dev_root/serial 2> /dev/null)"
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[ -z "$serial" ] && serial='0'
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itf="$(cat $itf_root/bInterfaceNumber 2> /dev/null)"
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dev_name="${vid}_${pid}_${serial}_${itf}"
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dev_file="/dev/uart/$dev_name"
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logger -t "$0" "creating device: $dev_file"
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mknod "$dev_file" c "$MAJOR" "$MINOR"
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;;
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remove)
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removed_major_minor="$MAJOR_HEX:$MINOR_HEX"
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for f in /dev/uart/*; do
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file_major_minor="$(stat -c %t:%T "$f")"
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#logger -t "$0" "$f | $removed_major_minor | $file_major_minor"
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if [ "$file_major_minor" = "$removed_major_minor" ]; then
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logger -t "$0" "removing device: $f"
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rm -f "$f"
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fi
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done
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;;
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esac
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