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This rule:
RUN+="socket:/org/kernel/udev/monitor"
send the event to the running monitor. Running udevstart give a nice
monitor output. Also the delay between the kernel uevent and the udev
udev event can be investigated:
pim:/home/kay/src/udev-kay # ./udevmonitor
UEVENT[1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1
UEVENT[1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1:1.0
UEVENT[1122920113] add@/class/scsi_host/host12
UEVENT[1122920113] add@/class/usb_device/usbdev2.99
UEVENT[1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1:1.0/host12/target12:0:0/12:0:0:0
UDEV [1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1
UEVENT[1122920113] add@/block/sda
UEVENT[1122920113] add@/class/scsi_generic/sg0
UEVENT[1122920113] add@/class/scsi_device/12:0:0:0
UDEV [1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1:1.0
UDEV [1122920113] add@/class/scsi_host/host12
UDEV [1122920113] add@/class/usb_device/usbdev2.99
UDEV [1122920113] add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1:1.0/host12/target12:0:0/12:0:0:0
UDEV [1122920113] add@/block/sda
UDEV [1122920113] add@/class/scsi_generic/sg0
UDEV [1122920113] add@/class/scsi_device/12:0:0:0
UEVENT[1122920115] add@/block/sda/sda1
UDEV [1122920115] add@/block/sda/sda1
pim:/home/kay/src/udev-kay # ./udevmonitor --env
UDEV [1122920185] add@/block/sda/sda1
ACTION=add
DEVPATH=/block/sda/sda1
SUBSYSTEM=block
SEQNUM=2159
MINOR=1
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1:1.0/host13/target13:0:0/13:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1
UDEV_LOG=3
ID_VENDOR=IBM
ID_MODEL=Memory_Key
ID_REVISION=3.04
ID_SERIAL=IBM_Memory_Key_0218B301030027E8
ID_TYPE=disk
ID_BUS=usb
ID_PATH=usb-0218B301030027E8:0:0:0
ID_FS_USAGE=filesystem
ID_FS_TYPE=vfat
ID_FS_VERSION=FAT16
ID_FS_UUID=42D8-9E02
ID_FS_LABEL_SAFE=s_p_c
DEVNAME=/dev/sda1
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
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