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-rw-r--r--src/etc/udev/rules.d/90-vyos-serial.rules28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/etc/udev/rules.d/90-vyos-serial.rules b/src/etc/udev/rules.d/90-vyos-serial.rules
new file mode 100644
index 000000000..3f10f4924
--- /dev/null
+++ b/src/etc/udev/rules.d/90-vyos-serial.rules
@@ -0,0 +1,28 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION=="remove", GOTO="serial_end"
+SUBSYSTEM!="tty", GOTO="serial_end"
+
+SUBSYSTEMS=="pci", ENV{ID_BUS}="pci", ENV{ID_VENDOR_ID}="$attr{vendor}", ENV{ID_MODEL_ID}="$attr{device}"
+SUBSYSTEMS=="pci", IMPORT{builtin}="hwdb --subsystem=pci"
+SUBSYSTEMS=="usb", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb"
+
+# /dev/serial/by-path/, /dev/serial/by-id/ for USB devices
+KERNEL!="ttyUSB[0-9]*|ttyACM[0-9]*", GOTO="serial_end"
+
+SUBSYSTEMS=="usb-serial", ENV{.ID_PORT}="$attr{port_number}"
+
+IMPORT{builtin}="path_id", IMPORT{builtin}="usb_id"
+
+# Change the name of the usb id to a "more" human redable format.
+#
+# - $env{ID_PATH} usually is a name like: "pci-0000:00:10.0-usb-0:2.3.3.4:1.0-port0" so we strip the "pci-*"
+# portion and only use the usb part
+# - Transform the USB "speach" to the tree like structure so we start with "usb0" as root-complex 0.
+# (tr -d -) does the replacement
+# - Replace the first group after ":" to represent the bus relation (sed -e 0,/:/s//b/) indicated by "b"
+# - Replace the next group after ":" to represent the port relation (sed -e 0,/:/s//p/) indicated by "p"
+ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="", PROGRAM="/bin/sh -c 'D=$env{ID_PATH}; echo ${D:17} | tr -d - | sed -e 0,/:/s//b/ | sed -e 0,/:/s//p/'", SYMLINK+="serial/by-bus/$result"
+ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="?*", PROGRAM="/bin/sh -c 'D=$env{ID_PATH}; echo ${D:17} | tr -d - | sed -e 0,/:/s//b/ | sed -e 0,/:/s//p/'", SYMLINK+="serial/by-bus/$result"
+
+LABEL="serial_end"