From: Kay Sievers <kay.sievers@vrfy.org>
Date: Thu, 4 Dec 2008 00:43:33 +0000 (+0100)
Subject: rules: add persistent /dev/serial/{by-id,by-path} rules
X-Git-Tag: 174~1266
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=bc4c751802147f1ff21bf52a57a2976754949453;ds=sidebyside

rules: add persistent /dev/serial/{by-id,by-path} rules

 $ tree /dev/serial/
 /dev/serial/
 |-- by-id
 |   |-- usb-067b_2303-if00-port0 -> ../../ttyUSB0
 |   |-- usb-FTDI_FT232R_USB_UART_A7005uBP-if00-port0 -> ../../ttyUSB3
 |   |-- usb-HUAWEI_Technology_HUAWEI_Mobile-if00-port0 -> ../../ttyUSB1
 |   `-- usb-HUAWEI_Technology_HUAWEI_Mobile-if01-port0 -> ../../ttyUSB2
 `-- by-path
     |-- pci-0000:00:1d.0-usb-0:1:1.0-port0 -> ../../ttyUSB3
     |-- pci-0000:00:1d.7-usb-0:2.2.2:1.0-port0 -> ../../ttyUSB0
     |-- pci-0000:00:1d.7-usb-0:2.3:1.0-port0 -> ../../ttyUSB1
     `-- pci-0000:00:1d.7-usb-0:2.3:1.1-port0 -> ../../ttyUSB2

 $ tree /dev/serial/
 /dev/serial/
 |-- by-id
 |   |-- usb-Inside_Out_Networks_Edgeport_4_04-01-006467-if00-port0 -> ../../ttyUSB0
 |   |-- usb-Inside_Out_Networks_Edgeport_4_04-01-006467-if00-port1 -> ../../ttyUSB1
 |   |-- usb-Inside_Out_Networks_Edgeport_4_04-01-006467-if00-port2 -> ../../ttyUSB2
 |   |-- usb-Inside_Out_Networks_Edgeport_4_04-01-006467-if00-port3 -> ../../ttyUSB3
 |   |-- usb-Keyspan__a_division_of_InnoSys_Inc._USB_4-port_Serial_Adapter-if00-port0 -> ../../ttyUSB8
 |   |-- usb-Keyspan__a_division_of_InnoSys_Inc._USB_4-port_Serial_Adapter-if00-port1 -> ../../ttyUSB9
 |   |-- usb-Keyspan__a_division_of_InnoSys_Inc._USB_4-port_Serial_Adapter-if00-port2 -> ../../ttyUSB10
 |   |-- usb-Keyspan__a_division_of_InnoSys_Inc._USB_4-port_Serial_Adapter-if00-port3 -> ../../ttyUSB11
 |   `-- usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0 -> ../../ttyUSB7
 `-- by-path
     |-- pci-0000:00:1d.2-usb-0:1.3:1.0-port0 -> ../../ttyUSB7
     |-- pci-0000:00:1d.7-usb-0:6.1.4.1:1.0-port0 -> ../../ttyUSB4
     |-- pci-0000:00:1d.7-usb-0:6.1.4.1:1.0-port1 -> ../../ttyUSB5
     |-- pci-0000:00:1d.7-usb-0:6.1.4.1:1.0-port2 -> ../../ttyUSB6
     |-- pci-0000:00:1d.7-usb-0:6.1.4.4:1.0-port0 -> ../../ttyUSB0
     |-- pci-0000:00:1d.7-usb-0:6.1.4.4:1.0-port1 -> ../../ttyUSB1
     |-- pci-0000:00:1d.7-usb-0:6.1.4.4:1.0-port2 -> ../../ttyUSB2
     |-- pci-0000:00:1d.7-usb-0:6.1.4.4:1.0-port3 -> ../../ttyUSB3
     |-- pci-0000:00:1d.7-usb-0:6.3:1.0-port0 -> ../../ttyUSB8
     |-- pci-0000:00:1d.7-usb-0:6.3:1.0-port1 -> ../../ttyUSB9
     |-- pci-0000:00:1d.7-usb-0:6.3:1.0-port2 -> ../../ttyUSB10
     `-- pci-0000:00:1d.7-usb-0:6.3:1.0-port3 -> ../../ttyUSB11
---

diff --git a/extras/path_id/path_id b/extras/path_id/path_id
index f7b1435d3..f45f62ad3 100755
--- a/extras/path_id/path_id
+++ b/extras/path_id/path_id
@@ -515,6 +515,9 @@ handle_device () {
 			*/host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
 				handle_scsi "$D"
 				;;
+			*/ttyUSB*)
+				D=${D%/ttyUSB*}
+				;;
 			*/usb[0-9]*/[0-9]*/*)
 				handle_usb "$D"
 				;;
diff --git a/rules/rules.d/60-persistent-serial.rules b/rules/rules.d/60-persistent-serial.rules
new file mode 100644
index 000000000..df10606e0
--- /dev/null
+++ b/rules/rules.d/60-persistent-serial.rules
@@ -0,0 +1,19 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION!="add|change", GOTO="persistent_serial_end"
+SUBSYSTEM!="tty", GOTO="persistent_serial_end"
+KERNEL!="ttyUSB[0-9]*", GOTO="persistent_serial_end"
+
+SUBSYSTEMS=="usb-serial", ENV{ID_PORT}="$attr{port_number}"
+ENV{ID_PORT}=="", GOTO="persistent_serial_end"
+
+IMPORT="path_id"
+ENV{ID_PATH}=="?*", SYMLINK+="serial/by-path/$env{ID_PATH}-port$env{ID_PORT}"
+
+IMPORT="usb_id --export"
+ENV{ID_SERIAL}=="", GOTO="persistent_serial_end"
+SUBSYSTEMS=="usb", ENV{ID_IFACE}="$attr{bInterfaceNumber}"
+ENV{ID_IFACE}=="", GOTO="persistent_serial_end"
+SYMLINK+="serial/by-id/$env{ID_BUS}-$env{ID_SERIAL}-if$env{ID_IFACE}-port$env{ID_PORT}"
+
+LABEL="persistent_serial_end"