udevadm/ постоянные имена USB не работают (ошибка разрешения)

Question

udevadm/ постоянные имена USB не работают (ошибка разрешения)

У меня есть 2 идентичных приемника Bluetooth, подключенных к Raspberry Pi, которые мне нужны для мониторинга сигналов Bluetooth в разных частях комнаты. К сожалению, эти два устройства имеют одинаковые idVendor и idProduct, поэтому я прибег к использованию ATTR{serial} в надежде, что udev сможет различить два.

Проблема в том, что после того, как я создал правила udev (с новым SYMLINK), только один из приемников Bluetooth показывает DEVLINK с правильным именем, которое я указал в правиле. Имя другого приемника Bluetooth DEVLINK никогда не отображается. Я пробовал несколько вещей: перезагрузка, перезагрузка правил udev, перезапуск udevadm. Консоль выдает следующую ошибку, когда в dm test (полные выводы приведены ниже - я думаю, что может быть проблема с разрешениями для последней части этого вывода?):

udev_event_execute_rules: no node name set, will use kernel supplied
name 'bus/usb/001/006'
udev_node_add: creating device node '/dev/bus/usb/001/006',
devnum=189:5, mode=01664, uid=0, gid=0
udev_node_mknod: preserve file '/dev/bus/usb/001/006', because it has
correct dev_t
udev_node_mknod: preserve permissions /dev/bus/usb/001/006, 021664, uid=0, gid=0
node_symlink: preserve already existing symlink '/dev/char/189:5' to
'../bus/usb/001/006'
udev_device_update_db: unable to create temporary db file
'/run/udev/data/c189:5.tmp': Permission denied
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/006

Если это поможет, вот что я сделал, чтобы создать правила и выполнить тесты:

Сначала я запустил информацию udevadm, чтобы определить различия между двумя получателями. IdVendor, serial и idProduct на 1 устройстве были следующими:

ATTR{idVendor}=="0a5c"
ATTR{serial}=="0002723FAE6C"
ATTR{idProduct}=="21e8"

И на другом устройстве...

ATTR{idVendor}=="0a5c"
ATTR{serial}=="5CF37067320A"
ATTR{idProduct}=="21e8"

Я создал новый файл правил под названием "00-my-usb-device.rules", который выглядит следующим образом:

SUBSYSTEM=="usb", ATTR{idVendor}=="0a5c",
ATTRS{serial}=="5CF37067320A", SYMLINK+="driverBT"

Затем я создал отдельное поле правил под названием "01-my-usb-device.rules" (изначально у меня были оба правила в одном файле, но я хотел попробовать все возможности. Этот файл выглядит следующим образом:

SUBSYSTEM=="USB", ATTR{serial}=="0002723FAE6C",
ATTR{idVendor}=="0a5c", SYMLINK+="rearBT"

Запуск devadm на первом порту с серийным номером "5CF37067320A" (также было первым правилом, которое я установил): udevadm test /devices/platform/bcm2708_usb/usb1/1-1/1-1.5/1-1.5.2 run_command: вызов: test adm_test: версия 175 Эта программа предназначена только для отладки, она не запускает никаких программ, указанных ключом RUN. Он может показывать неверные результаты, потому что некоторые значения могут отличаться или не быть доступными во время симуляции.

parse_file: reading '/etc/udev/rules.d/00-my-usb-device.rules' as rules file
parse_file: reading '/etc/udev/rules.d/01-my-usb-device.rules' as rules file
parse_file: reading '/lib/udev/rules.d/10-local-rpi.rules' as rules file
parse_file: reading '/etc/udev/rules.d/40-scratch.rules' as rules file
parse_file: reading '/lib/udev/rules.d/42-qemu-usb.rules' as rules file
parse_file: reading '/lib/udev/rules.d/50-udev-default.rules' as rules file
parse_file: reading '/lib/udev/rules.d/55-dm.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-cdrom_id.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-fuse.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-gnupg.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-gpsd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-i2c-tools.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-ifplugd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-libgphoto2-2.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-alsa.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-input.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-serial.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage-dm.rules'
as rules file
parse_file: reading
'/lib/udev/rules.d/60-persistent-storage-tape.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage.rules' as
rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-v4l.rules' as rules     file
parse_file: reading '/lib/udev/rules.d/60-python-pifacecommon.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/60-python3-pifacecommon.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/60-triggerhappy.rules' as rules file
parse_file: reading '/lib/udev/rules.d/61-accelerometer.rules' as rules file
parse_file: reading '/run/udev/rules.d/61-dev-root-link.rules' as rules file
parse_file: reading '/lib/udev/rules.d/64-xorg-xkb.rules' as rules file
parse_file: reading '/lib/udev/rules.d/70-uaccess.rules' as rules file
add_rule: IMPORT found builtin 'usb_id', replacing
/lib/udev/rules.d/70-uaccess.rules:13
parse_file: reading '/lib/udev/rules.d/70-udev-acl.rules' as rules file
parse_file: reading '/lib/udev/rules.d/71-seat.rules' as rules file
add_rule: IMPORT found builtin 'path_id', replacing
/lib/udev/rules.d/71-seat.rules:23
parse_file: reading '/lib/udev/rules.d/73-seat-late.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-cd-aliases-generator.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/75-net-description.rules' as rules file
parse_file: reading
'/lib/udev/rules.d/75-persistent-net-generator.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-probe_mtd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-tty-description.rules' as rules file
parse_file: reading '/lib/udev/rules.d/78-sound-card.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-drivers.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-networking.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-udisks.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-hwclock.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-usbmuxd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/90-alsa-restore.rules' as rules file
parse_file: reading '/lib/udev/rules.d/91-permissions.rules' as rules file
parse_file: reading
'/lib/udev/rules.d/95-keyboard-force-release.rules' as rules file
parse_file: reading '/lib/udev/rules.d/95-keymap.rules' as rules file
parse_file: reading '/lib/udev/rules.d/95-udev-late.rules' as rules file
parse_file: reading '/lib/udev/rules.d/97-hid2hci.rules' as rules file
parse_file: reading '/etc/udev/rules.d/99-input.rules' as rules file
parse_file: reading '/lib/udev/rules.d/99-systemd.rules' as rules file
udev_rules_new: rules use 145392 bytes tokens (12116 * 12 bytes),
24358 bytes buffer
udev_rules_new: temporary index used 39920 bytes (1996 * 20 bytes)
udev_device_new_from_syspath: device 0x18b5748 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1/1-1.5/1-1.5.2'
udev_device_new_from_syspath: device 0x18b2258 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1/1-1.5/1-1.5.2'
udev_device_read_db: device 0x18b2258 filled with db file data
udev_rules_apply_to_event: LINK 'driverBT'
/etc/udev/rules.d/00-my-usb-device.rules:1
udev_device_new_from_syspath: device 0x18b3188 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1/1-1.5'
udev_device_new_from_syspath: device 0x18b3640 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1'
udev_device_new_from_syspath: device 0x18b3ae8 has devpath
'/devices/platform/bcm2708_usb/usb1'
udev_device_new_from_syspath: device 0x18b3f88 has devpath
'/devices/platform/bcm2708_usb'
udev_device_new_from_syspath: device 0x18b42d8 has devpath         '/devices/platform'
udev_rules_apply_to_event: IMPORT builtin 'usb_id'
/lib/udev/rules.d/60-libgphoto2-2.rules:11
udev_builtin_add_property: ID_VENDOR=Broadcom_Corp
udev_builtin_add_property: ID_VENDOR_ENC=Broadcom\x20Corp
udev_builtin_add_property: ID_VENDOR_ID=0a5c
udev_builtin_add_property: ID_MODEL=BCM20702A0
udev_builtin_add_property: ID_MODEL_ENC=BCM20702A0
udev_builtin_add_property: ID_MODEL_ID=21e8
udev_builtin_add_property: ID_REVISION=0112
udev_builtin_add_property: ID_SERIAL=Broadcom_Corp_BCM20702A0_5CF37067320A
udev_builtin_add_property: ID_SERIAL_SHORT=5CF37067320A
udev_builtin_add_property: ID_BUS=usb
udev_builtin_add_property: ID_USB_INTERFACES=:ff0101:ffffff:fe0101:
udev_rules_apply_to_event: MODE 0664 /lib/udev/rules.d/91-permissions.rules:36
udev_event_execute_rules: no node name set, will use kernel supplied
name 'bus/usb/001/009'
udev_node_add: creating device node '/dev/bus/usb/001/009',
devnum=189:8, mode=01664, uid=0, gid=0
udev_node_mknod: preserve file '/dev/bus/usb/001/009', because it has
correct dev_t
udev_node_mknod: preserve permissions /dev/bus/usb/001/009, 021664, uid=0,     gid=0
node_symlink: preserve already existing symlink '/dev/char/189:8' to
'../bus/usb/001/009'
link_find_prioritized: found 'c189:8' claiming '/run/udev/links/driverBT'
link_update: creating link '/dev/driverBT' to '/dev/bus/usb/001/009'
node_symlink: preserve already existing symlink '/dev/driverBT' to
'bus/usb/001/009'
udev_device_update_db: unable to create temporary db file
'/run/udev/data/c189:8.tmp': Permission denied
ACTION=add
BUSNUM=001
DEVLINKS=/dev/driverBT
DEVNAME=/dev/bus/usb/001/009
DEVNUM=009
DEVPATH=/devices/platform/bcm2708_usb/usb1/1-1/1-1.5/1-1.5.2
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=BCM20702A0
ID_MODEL_ENC=BCM20702A0
ID_MODEL_ID=21e8
ID_REVISION=0112
ID_SERIAL=Broadcom_Corp_BCM20702A0_5CF37067320A
ID_SERIAL_SHORT=5CF37067320A
ID_USB_INTERFACES=:ff0101:ffffff:fe0101:
ID_VENDOR=Broadcom_Corp
ID_VENDOR_ENC=Broadcom\x20Corp
ID_VENDOR_ID=0a5c
MAJOR=189
MINOR=8
PRODUCT=a5c/21e8/112
SUBSYSTEM=usb
TYPE=255/1/1
UDEV_LOG=6
USEC_INITIALIZED=465479898

Запуск теста udevadm на втором порту (здесь отсутствует DEVLINK по сравнению с другим устройством):

udevadm test /devices/platform/bcm2708_usb/usb1/1-1/1-1.5 run_command: вызов: test adm_test: версия 175 Эта программа предназначена только для отладки, она не запускает никаких программ, указанных ключом RUN. Он может показывать неверные результаты, потому что некоторые значения могут отличаться или не быть доступными во время симуляции.

parse_file: reading '/etc/udev/rules.d/00-my-usb-device.rules' as rules file
parse_file: reading '/etc/udev/rules.d/01-my-usb-device.rules' as rules file
parse_file: reading '/lib/udev/rules.d/10-local-rpi.rules' as rules file
parse_file: reading '/etc/udev/rules.d/40-scratch.rules' as rules file
parse_file: reading '/lib/udev/rules.d/42-qemu-usb.rules' as rules file
parse_file: reading '/lib/udev/rules.d/50-udev-default.rules' as rules file
parse_file: reading '/lib/udev/rules.d/55-dm.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-cdrom_id.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-fuse.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-gnupg.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-gpsd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-i2c-tools.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-ifplugd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-libgphoto2-2.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-alsa.rules' as rules file    
parse_file: reading '/lib/udev/rules.d/60-persistent-input.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-serial.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage-dm.rules'
as rules file
parse_file: reading
'/lib/udev/rules.d/60-persistent-storage-tape.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage.rules' as
rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-v4l.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-python-pifacecommon.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/60-python3-pifacecommon.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/60-triggerhappy.rules' as rules file
parse_file: reading '/lib/udev/rules.d/61-accelerometer.rules' as rules file
parse_file: reading '/run/udev/rules.d/61-dev-root-link.rules' as rules file
parse_file: reading '/lib/udev/rules.d/64-xorg-xkb.rules' as rules file
parse_file: reading '/lib/udev/rules.d/70-uaccess.rules' as rules file
add_rule: IMPORT found builtin 'usb_id', replacing
/lib/udev/rules.d/70-uaccess.rules:13
parse_file: reading '/lib/udev/rules.d/70-udev-acl.rules' as rules file
parse_file: reading '/lib/udev/rules.d/71-seat.rules' as rules file
add_rule: IMPORT found builtin 'path_id', replacing
/lib/udev/rules.d/71-seat.rules:23
parse_file: reading '/lib/udev/rules.d/73-seat-late.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-cd-aliases-generator.rules'
as rules file
parse_file: reading '/lib/udev/rules.d/75-net-description.rules' as rules file
parse_file: reading
'/lib/udev/rules.d/75-persistent-net-generator.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-probe_mtd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-tty-description.rules' as rules file
parse_file: reading '/lib/udev/rules.d/78-sound-card.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-drivers.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-networking.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-udisks.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-hwclock.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-usbmuxd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/90-alsa-restore.rules' as rules file
parse_file: reading '/lib/udev/rules.d/91-permissions.rules' as rules file
parse_file: reading
'/lib/udev/rules.d/95-keyboard-force-release.rules' as rules file
parse_file: reading '/lib/udev/rules.d/95-keymap.rules' as rules file
parse_file: reading '/lib/udev/rules.d/95-udev-late.rules' as rules file
parse_file: reading '/lib/udev/rules.d/97-hid2hci.rules' as rules file
parse_file: reading '/etc/udev/rules.d/99-input.rules' as rules file
parse_file: reading '/lib/udev/rules.d/99-systemd.rules' as rules file
udev_rules_new: rules use 145392 bytes tokens (12116 * 12 bytes),
24358 bytes buffer
udev_rules_new: temporary index used 39920 bytes (1996 * 20 bytes)
udev_device_new_from_syspath: device 0x17a748 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1/1-1.5'
udev_device_new_from_syspath: device 0x177258 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1/1-1.5'
udev_device_read_db: device 0x177258 filled with db file data
udev_device_new_from_syspath: device 0x177db8 has devpath
'/devices/platform/bcm2708_usb/usb1/1-1'
udev_device_new_from_syspath: device 0x178260 has devpath
'/devices/platform/bcm2708_usb/usb1'
udev_device_new_from_syspath: device 0x1786d8 has devpath
'/devices/platform/bcm2708_usb'
udev_device_new_from_syspath: device 0x178a28 has devpath '/devices/platform'
udev_rules_apply_to_event: IMPORT builtin 'usb_id'
/lib/udev/rules.d/60-libgphoto2-2.rules:11
udev_builtin_add_property: ID_VENDOR=050d
udev_builtin_add_property: ID_VENDOR_ENC=050d
udev_builtin_add_property: ID_VENDOR_ID=050d
udev_builtin_add_property: ID_MODEL=0234
udev_builtin_add_property: ID_MODEL_ENC=0234
udev_builtin_add_property: ID_MODEL_ID=0234
udev_builtin_add_property: ID_REVISION=3298
udev_builtin_add_property: ID_SERIAL=050d_0234
udev_builtin_add_property: ID_BUS=usb
udev_builtin_add_property: ID_USB_INTERFACES=:090001:090002:
udev_rules_apply_to_event: MODE 0664 /lib/udev/rules.d/91-    permissions.rules:36
udev_event_execute_rules: no node name set, will use kernel supplied
name 'bus/usb/001/006'
udev_node_add: creating device node '/dev/bus/usb/001/006',
devnum=189:5, mode=01664, uid=0, gid=0
udev_node_mknod: preserve file '/dev/bus/usb/001/006', because it has
correct dev_t
udev_node_mknod: preserve permissions /dev/bus/usb/001/006, 021664, uid=0,     gid=0
node_symlink: preserve already existing symlink '/dev/char/189:5' to
'../bus/usb/001/006'
udev_device_update_db: unable to create temporary db file
'/run/udev/data/c189:5.tmp': Permission denied
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/006
DEVNUM=006
DEVPATH=/devices/platform/bcm2708_usb/usb1/1-1/1-1.5
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=0234
ID_MODEL_ENC=0234
ID_MODEL_ID=0234
ID_REVISION=3298
ID_SERIAL=050d_0234
ID_USB_INTERFACES=:090001:090002:
ID_VENDOR=050d
ID_VENDOR_ENC=050d
ID_VENDOR_ID=050d
MAJOR=189
MINOR=5
PRODUCT=50d/234/3298
SUBSYSTEM=usb
TYPE=9/0/2
UDEV_LOG=6
USEC_INITIALIZED=200440100

-1

linux usb symlink rules udev

Источник

user4256287 25 июл '15 в 15:03

1 ответ

Решение

Другие вопросы по тегам linux usb symlink rules udev

user4256287 25 июл '15 в 21:54 2015-07-25 21:54 · Accepted Answer · 2015-07-25 21:54

Требовалось ядро. 2 BT-адаптера подключены к 4-портовому концентратору. Как только я указал Ядро в каждом из 2 правил, все заработало.

Продукт и серийный номер также использовались для различения двух устройств (продукт, вероятно, не так необходим, поскольку он соответствует другому устройству BT, но серийный номер определенно требуется).