Usb

為什麼移除設備後不會觸發此 udev 規則？

  • October 5, 2019

我有兩隻滑鼠，其中一隻存在滑鼠中鍵和 button6 同時觸發的問題。所以我將我的配置~/.Xmodmap為禁用此按鈕。然而，與此同時，我希望能夠在我的另一隻滑鼠上仍然使用這個按鈕。所以我寫了一條udev規則，xmodmap根據連接的滑鼠來改變按鈕佈局。

設置

這是我目前的設置：

/etc/udev/rules.d/logitech-g7.rules :

# deactivate MB 6 when mouse 1 is connected
ACTION=="add", ENV{DEVTYPE}=="usb_device", ENV{ID_VENDOR_ID}=="046d", ENV{ID_MODEL_ID}=="c51a", RUN+="/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper 1", OWNER="user"
# restore defaults when mouse 1 is disconnected
ACTION=="remove", ENV{DEVTYPE}=="usb_device", ENV{ID_VENDOR_ID}=="046d", ENV{ID_MODEL_ID}=="c51a", RUN+="/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper 0", OWNER="user"

/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper :

#!/bin/bash
/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher "$1"&

/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher

#!/bin/bash
sleep 1
DISPLAY=":0.0"
HOME=/home/user/
XAUTHORITY=$HOME/.Xauthority
export DISPLAY XAUTHORITY HOME

if [[ "$1" == 1 ]] #differentiate between ADD (1) event and REMOVE (0) event
 then
     /usr/bin/xmodmap /home/user/.XmodmapG7 > /dev/null 2>&1
 else
     /usr/bin/xmodmap /home/user/.Xmodmap > /dev/null 2>&1
fi

如果這個接縫有點過於復雜，那隻是因為我偶然發現了一些關於 udev、xmodmap 和 DISPLAY 變數的問題。我的腳本基於此 Q&A。

目前狀態

ADD 動作可以正常工作，而 REMOVE 動作不能。在終端中手動執行任一 RUN 命令都可以正常工作。

到目前為止我嘗試過的

我發現這個論壇文章概述了為什麼 udev 在刪除操作方面存在問題，因此將 ATTRS 替換為 ENV 變數。但這一切都無濟於事，REMOVE 觸發器仍然不起作用。

一定有什麼我做錯了。如果這裡更精通 udev 和 Linux 的人可以看看我的情況，我將不勝感激。

附加資訊

udevadm monitor --environment --udev插入接收器時的輸出：

######ADD#######

monitor will print the received events for:
UDEV - the event which udev sends out after rule processing

UDEV  [21728.392805] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3 (usb)
ACTION=add
BUSNUM=002
DEVNAME=/dev/bus/usb/002/037
DEVNUM=037
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_USB_INTERFACES=:030102:030000:
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
MAJOR=189
MINOR=164
PRODUCT=46d/c51a/4100
SEQNUM=3139
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
UPOWER_VENDOR=Logitech, Inc.
USEC_INITIALIZED=21727880859

UDEV  [21728.393864] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0
DEVTYPE=usb_interface
INTERFACE=3/1/2
MODALIAS=usb:v046DpC51Ad4100dc00dsc00dp00ic03isc01ip02in00
PRODUCT=46d/c51a/4100
SEQNUM=3140
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=21728393779

UDEV  [21728.395536] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1
DEVTYPE=usb_interface
INTERFACE=3/0/0
MODALIAS=usb:v046DpC51Ad4100dc00dsc00dp00ic03isc00ip00in01
PRODUCT=46d/c51a/4100
SEQNUM=3146
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=21728395426

UDEV  [21728.395737] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004B (hid)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004B
HID_ID=0003:0000046D:0000C51A
HID_NAME=Logitech USB Receiver
HID_PHYS=usb-0000:00:1d.0-1.3/input0
MODALIAS=hid:b0003g0001v0000046Dp0000C51A
SEQNUM=3141
SUBSYSTEM=hid
UDEV_LOG=3
USEC_INITIALIZED=21728395467

UDEV  [21728.398102] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004C (hid)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004C
HID_ID=0003:0000046D:0000C51A
HID_NAME=Logitech USB Receiver
HID_PHYS=usb-0000:00:1d.0-1.3/input1
MODALIAS=hid:b0003g0001v0000046Dp0000C51A
SEQNUM=3147
SUBSYSTEM=hid
UDEV_LOG=3
USEC_INITIALIZED=21728397927

UDEV  [21728.398650] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004B/hidraw/hidraw2 (hidraw)
ACTION=add
DEVNAME=/dev/hidraw2
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004B/hidraw/hidraw2
MAJOR=251
MINOR=2
SEQNUM=3145
SUBSYSTEM=hidraw
UDEV_LOG=3
USEC_INITIALIZED=21728398188

UDEV  [21728.399406] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004C/hidraw/hidraw3 (hidraw)
ACTION=add
DEVNAME=/dev/hidraw3
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004C/hidraw/hidraw3
MAJOR=251
MINOR=3
SEQNUM=3151
SUBSYSTEM=hidraw
UDEV_LOG=3
USEC_INITIALIZED=21728399273

UDEV  [21728.400119] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/usbmisc/hiddev1 (usbmisc)
ACTION=add
DEVNAME=/dev/usb/hiddev1
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/usbmisc/hiddev1
MAJOR=180
MINOR=1
SEQNUM=3150
SUBSYSTEM=usbmisc
UDEV_LOG=3
USEC_INITIALIZED=21727874845

UDEV  [21728.401438] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input73 (input)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input73
EV=17
ID_BUS=usb
ID_INPUT=1
ID_INPUT_MOUSE=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.0
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_0
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
KEY=ffff0000 0 0 0 0
MODALIAS=input:b0003v046DpC51Ae0111-e0,1,2,4,k110,111,112,113,114,115,116,117,118,119,11A,11B,11C,11D,11E,11F,r0,1,6,8,am4,lsfw
MSC=10
NAME="Logitech USB Receiver"
PHYS="usb-0000:00:1

udevadm monitor --environment --udev移除接收器時的輸出：

#######REMOVE#######


monitor will print the received events for:
UDEV - the event which udev sends out after rule processing

UDEV  [21800.789239] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75/mouse1 (input)
ACTION=remove
DEVLINKS=/dev/input/by-id/usb-Logitech_USB_Receiver-mouse /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.0-mouse
DEVNAME=/dev/input/mouse1
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75/mouse1
ID_BUS=usb
ID_INPUT=1
ID_INPUT_MOUSE=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.0
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_0
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
MAJOR=13
MINOR=33
SEQNUM=3178
SUBSYSTEM=input
UDEV_LOG=3
USEC_INITIALIZED=21797014959

UDEV  [21800.792866] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75/event6 (input)
ACTION=remove
DEVLINKS=/dev/input/by-id/usb-Logitech_USB_Receiver-event-mouse /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.0-event-mouse
DEVNAME=/dev/input/event6
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75/event6
ID_BUS=usb
ID_INPUT=1
ID_INPUT_MOUSE=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.0
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_0
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
MAJOR=13
MINOR=70
SEQNUM=3179
SUBSYSTEM=input
UDEV_LOG=3
USEC_INITIALIZED=21797013896

UDEV  [21800.797061] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75 (input)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/input/input75
EV=17
ID_BUS=usb
ID_INPUT=1
ID_INPUT_MOUSE=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.0
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_0
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
KEY=ffff0000 0 0 0 0 0 0 0 0
MODALIAS=input:b0003v046DpC51Ae0111-e0,1,2,4,k110,111,112,113,114,115,116,117,118,119,11A,11B,11C,11D,11E,11F,r0,1,6,8,am4,lsfw
MSC=10
NAME="Logitech USB Receiver"
PHYS="usb-0000:00:1d.0-1.3/input0"
PRODUCT=3/46d/c51a/111
PROP=0
REL=143
SEQNUM=3180
SUBSYSTEM=input
UDEV_LOG=3
UNIQ=""
USEC_INITIALIZED=21796479085

UDEV  [21800.797132] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004D/hidraw/hidraw2 (hidraw)
ACTION=remove
DEVNAME=/dev/hidraw2
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004D/hidraw/hidraw2
MAJOR=251
MINOR=2
SEQNUM=3181
SUBSYSTEM=hidraw
UDEV_LOG=3
USEC_INITIALIZED=21800796369

UDEV  [21800.797172] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004D (hid)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0/0003:046D:C51A.004D
HID_ID=0003:0000046D:0000C51A
HID_NAME=Logitech USB Receiver
HID_PHYS=usb-0000:00:1d.0-1.3/input0
MODALIAS=hid:b0003g0001v0000046Dp0000C51A
SEQNUM=3182
SUBSYSTEM=hid
UDEV_LOG=3
USEC_INITIALIZED=21800796501

UDEV  [21800.798537] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0 (usb)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.0
DEVTYPE=usb_interface
INTERFACE=3/1/2
MODALIAS=usb:v046DpC51Ad4100dc00dsc00dp00ic03isc01ip02in00
PRODUCT=46d/c51a/4100
SEQNUM=3183
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=21800796538

UDEV  [21800.814181] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/input/input76/event7 (input)
ACTION=remove
DEVLINKS=/dev/input/by-id/usb-Logitech_USB_Receiver-event-if01 /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.1-event
DEVNAME=/dev/input/event7
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/input/input76/event7
ID_BUS=usb
ID_INPUT=1
ID_INPUT_KEY=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.1
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_1
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=01
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
MAJOR=13
MINOR=71
SEQNUM=3184
SUBSYSTEM=input
UDEV_LOG=3
USEC_INITIALIZED=21797013933
XKBLAYOUT=de
XKBMODEL=pc105

UDEV  [21800.816765] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/input/input76 (input)
ABS=1 0
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/input/input76
EV=1f
ID_BUS=usb
ID_INPUT=1
ID_INPUT_KEY=1
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_PATH=pci-0000:00:1d.0-usb-0:1.3:1.1
ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_3_1_1
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_TYPE=hid
ID_USB_DRIVER=usbhid
ID_USB_INTERFACES=:030102:030000:
ID_USB_INTERFACE_NUM=01
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
KEY=4837fff 72ff32d bf544446 0 0 1 20f90 8b17c000 677bfa d9415fed 9ed680 4400 0 10000002
MODALIAS=input:b0003v046DpC51Ae0111-e0,1,2,3,4,k71,72,73,74,77,80,82,83,85,86,87,88,89,8A,8B,8C,8E,90,96,98,9B,9C,9E,9F,A1,A3,A4,A5,A6,A7,A8,A9,AB,AC,AD,AE,B0,B1,B2,B5,B6,CE,CF,D0,D1,D2,D4,D8,D9,DB,DF,E4,E7,E8,E9,EA,EB,F1,100,161,162,166,16A,16E,172,174,176,178,179,17A,17B,17C,17D,17F,180,182,183,185,188,189,18C,18D,18E,18F,190,191,192,193,195,198,199,19A,1A0,1A1,1A2,1A3,1A4,1A5,1A6,1A7,1A8,1A9,1AA,1AB,1AC,1AD,1AE,1B0,1B1,1B7,1BA,r6,a20,m4,lsfw
MSC=10
NAME="Logitech USB Receiver"
PHYS="usb-0000:00:1d.0-1.3/input1"
PRODUCT=3/46d/c51a/111
PROP=0
REL=40
SEQNUM=3185
SUBSYSTEM=input
UDEV_LOG=3
UNIQ=""
USEC_INITIALIZED=21796482192

UDEV  [21800.817249] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/usbmisc/hiddev1 (usbmisc)
ACTION=remove
DEVNAME=/dev/usb/hiddev1
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/usbmisc/hiddev1
MAJOR=180
MINOR=1
SEQNUM=3186
SUBSYSTEM=usbmisc
UDEV_LOG=3
USEC_INITIALIZED=21800816392

UDEV  [21800.818490] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004E/hidraw/hidraw3 (hidraw)
ACTION=remove
DEVNAME=/dev/hidraw3
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004E/hidraw/hidraw3
MAJOR=251
MINOR=3
SEQNUM=3187
SUBSYSTEM=hidraw
UDEV_LOG=3
USEC_INITIALIZED=21800816472

UDEV  [21800.818536] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004E (hid)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1/0003:046D:C51A.004E
HID_ID=0003:0000046D:0000C51A
HID_NAME=Logitech USB Receiver
HID_PHYS=usb-0000:00:1d.0-1.3/input1
MODALIAS=hid:b0003g0001v0000046Dp0000C51A
SEQNUM=3188
SUBSYSTEM=hid
UDEV_LOG=3
USEC_INITIALIZED=21800816908

UDEV  [21800.818580] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1 (usb)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.1
DEVTYPE=usb_interface
INTERFACE=3/0/0
MODALIAS=usb:v046DpC51Ad4100dc00dsc00dp00ic03isc00ip00in01
PRODUCT=46d/c51a/4100
SEQNUM=3189
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=21800816945

UDEV  [21800.818645] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3 (usb)
ACTION=remove
BUSNUM=002
DEVNAME=/dev/bus/usb/002/038
DEVNUM=038
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=USB_Receiver
ID_MODEL_ENC=USB\x20Receiver
ID_MODEL_ID=c51a
ID_REVISION=4100
ID_SERIAL=Logitech_USB_Receiver
ID_USB_INTERFACES=:030102:030000:
ID_VENDOR=Logitech
ID_VENDOR_ENC=Logitech
ID_VENDOR_ID=046d
MAJOR=189
MINOR=165
PRODUCT=46d/c51a/4100
SEQNUM=3190
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
UPOWER_VENDOR=Logitech, Inc.
USEC_INITIALIZED=21796488421

替代解決方案

寫完下面的答案後，我意識到你想要實現的目標可以在 Xorg 的配置的幫助下xinput甚至使用 Xorg 的配置來更優雅地完成。請務必閱讀有關在 Xorg 中控制輸入設備的文件。

使用 udev（您的問題的答案）

根據我的測試，您的規則有兩個問題：

  1. 至少在我的 Ubuntu GNU/Linux 12.04 上，沒有檢查ENV{DEVTYPE}是否匹配（即使它由udevadm infoand正確報告udevadm monitor）。這就是您甚至看不到add規則匹配的原因。
  2. 您應該從規則中刪除OWNER分配。remove這沒有意義，udev 完全忽略了該規則。

請嘗試以下兩條規則，看看它們是否能解決問題。

ACTION=="add", ENV{ID_MODEL}=="USB_Receiver", ENV{ID_VENDOR_ID}=="046d", ENV{ID_MODEL_ID}=="c51a", RUN+="/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper 1", OWNER="user"
ACTION=="remove", ENV{ID_MODEL}=="USB_Receiver", ENV{ID_VENDOR_ID}=="046d", ENV{ID_MODEL_ID}=="c51a", RUN+="/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper 0"

其他注意事項

需要考慮的幾件事：

  1. 使用ATTR{idVendor}和ATTR{idProduct}分類設備要乾淨得多。您可以安全地更改add規則以使用它們，而不是ENV，但為了簡單起見，我將它們保留為這樣。目前add和remove規則幾乎相同。
  2. 考慮在其他使用者可寫的目錄中以 root 身份執行腳本的安全隱患。在您的特定情況下，這不是一個嚴重的問題，但我不會稱其為良好的安全實踐。IMO 最好將腳本放在 /usr/local/bin/ 中，使其歸root.root和模式0755所有。
  3. 確保您希望滑鼠設備歸您的使用者所有，實際上沒有必要這樣做，PolicyKit 和 Xorg 應該能夠毫無問題地處理 root 擁有的設備。

如果您不需要更改設備的所有者並且您的設置適用於 root 擁有的設備，那麼您可以將兩個 udev 規則簡化為這個：

ACTION=="add|remove", ENV{ID_MODEL}=="USB_Receiver", ENV{ID_VENDOR_ID}=="046d", ENV{ID_MODEL_ID}=="c51a", RUN+="/home/user/.scripts/Troubleshooting/Bugfixes/mouseswitcher_wrapper $env{ACTION}"

這將使用相應的操作呼叫您的腳本 -remove或add，因此您需要修改腳本以處理這些參數。

為了防止規則多次匹配（以及要執行的腳本），您需要使規則更具體：規則匹配滑鼠的每個“輸入”（按鈕等）。這就是它反复執行的原因。嘗試添加ENV{ID_TYPE}!="hid"orENV{ID_USB_DRIVER}!="*hid*"並查看它是否有效，因為只有一個不是 HID 的設備 - 頂部usb_device。

PS：如果你想讓你的mouseswitcher腳本更靈活，並且使用 ConsoleKit 執行系統，你可以使用ck-list-sessions獲取目前登錄的使用者並使用該資訊來設置XAUTHORITY變數。

引用自：https://unix.stackexchange.com/questions/71348

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