Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Fri, 21 Dec 2007 13:15:37 -0600

Folks,

Thanks to all of you for responding!

I'm making progress, but I'm not quite there.

Guy's suggestion about the case-sensitivity on the idVendor was the problem.  I changed it from 10E9 to 10e9 and then the rule took effect.  I changed ATTRS to SYSFS on Peter's suggestion, but I found that actually either one works once the case sensitivity problem is fixed.

[epics@baja rules.d]# more 80-saturn.rules
SUBSYSTEM=="usb_device",ACTION=="add",SYSFS{idVendor}=="10e9",SYSFS{idProduct}=="0700",MODE="0666"
SUBSYSTEM=="usb_device",ACTION=="add",SYSFS{idVendor}=="10e9",SYSFS{idProduct}=="0701",MODE="0666"

Now when I turn on the Saturn and I look at the device I see the following:

[epics@baja ~]$ ls -l /dev/bus/usb/005
total 0
crw-r--r-- 1 root root 189, 512 2007-12-20 17:44 001
[epics@baja ~]$ ls -l /dev/bus/usb/005
total 0
crw-r--r-- 1 root root 189, 512 2007-12-20 17:44 001
crw-r--r-- 1 root root 189, 529 2007-12-21 13:01 018
[epics@baja ~]$ ls -l /dev/bus/usb/005
total 0
crw-r--r-- 1 root root 189, 512 2007-12-20 17:44 001
crw-rw-rw- 1 root root 189, 529 2007-12-21 13:01 018
The first time I looked it was still powered off.  The next time I looked it was powered on but the rule had not yet taken effect.  The last time I looked, about 2 seconds later, the rule had taken effect, and the permissions are 666 as I wanted.

That is the good news.  The bad news is that setting the permissions on that device, 
/dev/bus/usb/005/018 
does not allow a non-privileged user to access the device.  In order for a non-privileged use to access the device, I find that I need to set the permissions to 666 on 
/proc/bus/usb/005/018
i.e. the /proc filesystem, not the /dev filesystem.  If I change the permissions on the /proc filesystem manually then I can run the IOC in a non-privileged account.

I am not a Linux expert by any means.  What is the difference between the /dev and /proc filesystems?  Peter also mentioned the /sys file system.  How is that related?

I am using the libusb library to access the device.  With that API one simply calls usb_find_busses and usb_find_devices to locate the device you are interested in.  You don't specify the file system anywhere.

Any ideas how to get the permissions I need set on the device?

Thanks,
Mark

________________________________

From: [email protected] [mailto:[email protected]]
Sent: Fri 12/21/2007 1:27 AM
To: Mark Rivers
Subject: Re: Help with udev

A couple of suggestions (based on my limited experience with udev):

1: There's a 'udevtest' command that you can use to do a dry run of the udev actions for a particular device, this might cut down on the amount of output you have to go through.

2: I don't suppose the matching on the 'idVendor' attribute is case-sensitive?

Good luck,

Guy

>Folks,
>
>I have written EPICS device support for a USB device (Saturn spectroscopy system from XIA).  It is working fine under both Windows and Linux.
>
>However, on Linux I have been running the IOC application with root privilege, which I would like to avoid.  The problem arises because USB devices are created dynamically, so one cannot statically give them the desired mode (e.g. 666, 660, etc.).
>
>My understanding is that one can use the Linux "udev" facility to handle this.  I've found some examples of how to do it on the Web, but I can't seem to get it to work.  I was hoping someone might be able to tell me what I'm doing wrong.
>
>I've created a file, /etc/udev/rules.d/80-saturn.rules
>
>[epics@baja rules.d]$ more /etc/udev/rules.d/80-saturn.rules
>SUBSYSTEM=="usb_device",ACTION=="add",ATTRS{idVendor}=="10E9",ATTRS{idProduct}=="0700",MODE="0666"
>SUBSYSTEM=="usb_device",ACTION=="add",ATTRS{idVendor}=="10E9",ATTRS{idProduct}=="0701",MODE="0666"
>This should set the permissions on the device to 666 when the USB device is added.  I have verified that these are the correct idVendor and idProduct with udevinfo:
>
>[epics@baja udev]# /usr/bin/udevinfo --attribute-walk --name=/dev/bus/usb/005/008
>Udevinfo starts with the device specified by the devpath and then
>walks up the chain of parent devices. It prints for every device
>found, all possible attributes in the udev rules key format.
>A rule to match, can be composed by the attributes of the device
>and the attributes from one single parent device.
>  looking at device '/class/usb_device/usbdev5.8':
>    KERNEL=="usbdev5.8"
>    SUBSYSTEM=="usb_device"
>    DRIVER==""
>    ATTR{dev}=="189:519"
>  looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb5/5-1':
>    KERNELS=="5-1"
>    SUBSYSTEMS=="usb"
>    DRIVERS=="usb"
>    ATTRS{product}=="EZ-USB"
>    ATTRS{manufacturer}=="Cypress"
>    ATTRS{quirks}=="0x0"
>    ATTRS{maxchild}=="0"
>    ATTRS{version}==" 2.00"
>    ATTRS{devnum}=="8"
>    ATTRS{busnum}=="5"
>    ATTRS{speed}=="480"
>    ATTRS{bMaxPacketSize0}=="64"
>    ATTRS{bNumConfigurations}=="1"
>    ATTRS{bDeviceProtocol}=="00"
>    ATTRS{bDeviceSubClass}=="00"
>    ATTRS{bDeviceClass}=="00"
>    ATTRS{bcdDevice}=="0000"
>    ATTRS{idProduct}=="0701"
>    ATTRS{idVendor}=="10e9"
>    ATTRS{bMaxPower}=="100mA"
>    ATTRS{bmAttributes}=="80"
>    ATTRS{bConfigurationValue}=="1"
>    ATTRS{bNumInterfaces}==" 1"
>    ATTRS{configuration}==""
>    ATTRS{dev}=="189:519"
>
>I've increased the debugging level of udev, and restarted udevd.  I can see in the log file that it has read my rules file.
>
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/05-udev-early.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/06-udev-rh-early.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/10-libifp.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/40-multipath.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/50-udev.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-libmtp.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-libnjb.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-libsane.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-net.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-pcmcia.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-persistent-input.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-persistent-storage.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/60-wacom.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/80-saturn.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/85-pcscd_ccid.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/85-pcscd_egate.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/90-alsa.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/90-hal.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/95-pam-console.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/95-udev-late.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/99-fuse.rules' as rules file
>Dec 20 18:21:37 baja udevd[3584]: parse_file: reading '/etc/udev/rules.d/bluetooth.rules' as rules file
>Dec 20 18:21:37 baja udevd[3585]: main: initialize max_childs to 2114
>Dec 20 18:21:37 baja udevd[3585]: main: initialize max_childs_running to 40
>However, when powering the Saturn off and on (and thereby creating a new Linux USB device), the permissions are not what I want, they are still 644, not 666.  If I manually change the permissions on /proc/bus/usb/005/008 to 666 then non-privileged users can run the IOC application.  But the next time I power off and on the device, it will be device /proc/bus/usb/005/009, and again I would need to log in as root to change the permisions.
>
>
>Here is the output of the log file when the device is powered on and found by Linux.
>
>Dec 20 18:21:56 baja kernel: usb 5-1: new high speed USB device using ehci_hcd and address 8
>Dec 20 18:21:56 baja kernel: usb 5-1: configuration #1 chosen from 1 choice
>Dec 20 18:21:56 baja udevd[3585]: udev_event_run: seq 1037 forked, pid [3600], 'add' 'usb', 0 seconds old
>Dec 20 18:21:57 baja udevd-event[3600]: udev_rules_get_name: rule applied, '5-1' becomes 'bus/usb/005/008'
>Dec 20 18:21:57 baja udevd-event[3600]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fdevices\x2fpci0000:00\x2f0000:00:1d.7\x2fusb5\x2f5-1: No such file or directory
>Dec 20 18:21:57 baja udevd-event[3600]: udev_node_add: creating device node '/dev/bus/usb/005/008', major=189, minor=519, mode=0644, uid=0, gid=0
>Dec 20 18:21:57 baja udevd-event[3600]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f005\x2f008/\x2fdevices\x2fpci0000:00\x2f0000:00:1d.7\x2fusb5\x2f5-1'
>Dec 20 18:21:57 baja udevd-event[3600]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:57 baja udevd-event[3600]: pass_env_to_socket: passed 322 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:57 baja udevd-event[3600]: run_program: '/sbin/pam_console_apply /dev/bus/usb/005/008 '
>Dec 20 18:21:57 baja udevd-event[3600]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:57 baja udevd-event[3600]: udev_event_run: seq 1037 finished
>Dec 20 18:21:57 baja udevd[3585]: udev_done: seq 1037, pid [3600] exit with 0, 1 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1038 forked, pid [3602], 'add' 'usb_endpoint', 1 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1039 forked, pid [3603], 'add' 'usb', 0 seconds old
>Dec 20 18:21:57 baja udevd-event[3602]: udev_rules_get_name: add symlink 'usbdev5.8_ep00'
>Dec 20 18:21:57 baja udevd-event[3602]: udev_rules_get_name: rule applied, 'usbdev5.8_ep00' becomes 'bus/usb/5/8_ep/00'
>Dec 20 18:21:57 baja udevd-event[3603]: run_program: '/sbin/modprobe usb:v10E9p0701d0000dc00dsc00dp00icFFisc00ip00'
>Dec 20 18:21:57 baja udevd-event[3603]: run_program: '/sbin/modprobe' (stderr) 'FATAL: Module usb:v10E9p0701d0000dc00dsc00dp00icFFisc00ip00 not found.'
>Dec 20 18:21:57 baja udevd-event[3603]: run_program: '/sbin/modprobe' returned with status 1
>Dec 20 18:21:57 baja udevd-event[3603]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:57 baja udevd-event[3603]: pass_env_to_socket: passed 343 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:57 baja udevd-event[3603]: run_program: '/sbin/pam_console_apply  '
>Dec 20 18:21:57 baja udevd-event[3603]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:57 baja udevd-event[3603]: udev_event_run: seq 1039 finished
>Dec 20 18:21:57 baja udevd[3585]: udev_done: seq 1039, pid [3603] exit with 1, 0 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1040 forked, pid [3606], 'add' 'usb_endpoint', 0 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1041 forked, pid [3607], 'add' 'usb_endpoint', 0 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1042 forked, pid [3608], 'add' 'usb_endpoint', 0 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1043 forked, pid [3609], 'add' 'usb_endpoint', 0 seconds old
>Dec 20 18:21:57 baja udevd[3585]: udev_event_run: seq 1044 forked, pid [3610], 'add' 'usb_device', 0 seconds old
>Dec 20 18:21:57 baja udevd-event[3610]: run_program: '/bin/sh -c 'K=usbdev5.8; K=${K#usbdev}; printf bus/usb/%03i/%03i ${K%%.*} ${K#*.}''
>Dec 20 18:21:57 baja udevd-event[3610]: run_program: '/bin/sh' (stdout) 'bus/usb/005/008'
>Dec 20 18:21:57 baja udevd-event[3610]: run_program: '/bin/sh' returned with status 0
>Dec 20 18:21:57 baja udevd-event[3610]: udev_rules_get_name: rule applied, 'usbdev5.8' becomes 'bus/usb/005/008'
>Dec 20 18:21:57 baja udevd-event[3608]: udev_rules_get_name: add symlink 'usbdev5.8_ep06'
>Dec 20 18:21:57 baja udevd-event[3608]: udev_rules_get_name: rule applied, 'usbdev5.8_ep06' becomes 'bus/usb/5/8_ep/06'
>Dec 20 18:21:57 baja udevd-event[3609]: udev_rules_get_name: add symlink 'usbdev5.8_ep88'
>Dec 20 18:21:57 baja udevd-event[3606]: udev_rules_get_name: add symlink 'usbdev5.8_ep82'
>Dec 20 18:21:57 baja udevd-event[3609]: udev_rules_get_name: rule applied, 'usbdev5.8_ep88' becomes 'bus/usb/5/8_ep/88'
>Dec 20 18:21:57 baja udevd-event[3607]: udev_rules_get_name: add symlink 'usbdev5.8_ep01'
>Dec 20 18:21:57 baja udevd-event[3606]: udev_rules_get_name: rule applied, 'usbdev5.8_ep82' becomes 'bus/usb/5/8_ep/82'
>Dec 20 18:21:57 baja udevd-event[3607]: udev_rules_get_name: rule applied, 'usbdev5.8_ep01' becomes 'bus/usb/5/8_ep/01'
>Dec 20 18:21:57 baja udevd-event[3602]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep00: No such file or directory
>Dec 20 18:21:57 baja udevd-event[3602]: udev_node_add: creating device node '/dev/bus/usb/5/8_ep/00', major=251, minor=10, mode=0644, uid=0, gid=0
>Dec 20 18:21:58 baja udevd-event[3602]: name_index: creating index: '/dev/.udev/names/usbdev5.8_ep00/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f5\x2f8_ep\x2f00/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: udev_node_update_symlinks: update symlink 'usbdev5.8_ep00' of '/class/usb_endpoint/usbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: udev_db_get_devices_by_name: found index directory '/dev/.udev/names/usbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: update_link: found 1 devices with name 'usbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: update_link: found '/class/usb_endpoint/usbdev5.8_ep00' for 'usbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: update_link: compare (our own) priority of '/class/usb_endpoint/usbdev5.8_ep00' 0 >= 0
>Dec 20 18:21:58 baja udevd-event[3602]: update_link: 'usbdev5.8_ep00' with target 'bus/usb/5/8_ep/00' has the highest priority 0, create it
>Dec 20 18:21:58 baja udevd-event[3602]: node_symlink: creating symlink '/dev/usbdev5.8_ep00' to 'bus/usb/5/8_ep/00'
>Dec 20 18:21:58 baja udevd-event[3602]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:58 baja udevd-event[3602]: pass_env_to_socket: passed 319 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:58 baja udevd-event[3602]: run_program: '/sbin/pam_console_apply /dev/bus/usb/5/8_ep/00 /dev/usbdev5.8_ep00'
>Dec 20 18:21:58 baja udevd-event[3602]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:58 baja udevd-event[3602]: udev_event_run: seq 1038 finished
>Dec 20 18:21:58 baja udevd[3585]: udev_done: seq 1038, pid [3602] exit with 0, 2 seconds old
>Dec 20 18:21:58 baja udevd-event[3608]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep06: No such file or directory
>Dec 20 18:21:58 baja udevd-event[3608]: udev_node_add: creating device node '/dev/bus/usb/5/8_ep/06', major=251, minor=13, mode=0644, uid=0, gid=0
>Dec 20 18:21:58 baja udevd-event[3608]: name_index: creating index: '/dev/.udev/names/usbdev5.8_ep06/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f5\x2f8_ep\x2f06/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: udev_node_update_symlinks: update symlink 'usbdev5.8_ep06' of '/class/usb_endpoint/usbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: udev_db_get_devices_by_name: found index directory '/dev/.udev/names/usbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: update_link: found 1 devices with name 'usbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: update_link: found '/class/usb_endpoint/usbdev5.8_ep06' for 'usbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3608]: update_link: compare (our own) priority of '/class/usb_endpoint/usbdev5.8_ep06' 0 >= 0
>Dec 20 18:21:58 baja udevd-event[3608]: update_link: 'usbdev5.8_ep06' with target 'bus/usb/5/8_ep/06' has the highest priority 0, create it
>Dec 20 18:21:58 baja udevd-event[3608]: node_symlink: creating symlink '/dev/usbdev5.8_ep06' to 'bus/usb/5/8_ep/06'
>Dec 20 18:21:58 baja udevd-event[3608]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:58 baja udevd-event[3608]: pass_env_to_socket: passed 309 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:58 baja udevd-event[3608]: run_program: '/sbin/pam_console_apply /dev/bus/usb/5/8_ep/06 /dev/usbdev5.8_ep06'
>Dec 20 18:21:58 baja udevd-event[3609]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep88: No such file or directory
>Dec 20 18:21:58 baja udevd-event[3609]: udev_node_add: creating device node '/dev/bus/usb/5/8_ep/88', major=251, minor=14, mode=0644, uid=0, gid=0
>Dec 20 18:21:58 baja udevd-event[3608]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:58 baja udevd-event[3608]: udev_event_run: seq 1042 finished
>Dec 20 18:21:58 baja udevd[3585]: udev_done: seq 1042, pid [3608] exit with 0, 1 seconds old
>Dec 20 18:21:58 baja udevd-event[3609]: name_index: creating index: '/dev/.udev/names/usbdev5.8_ep88/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f5\x2f8_ep\x2f88/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: udev_node_update_symlinks: update symlink 'usbdev5.8_ep88' of '/class/usb_endpoint/usbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: udev_db_get_devices_by_name: found index directory '/dev/.udev/names/usbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: update_link: found 1 devices with name 'usbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: update_link: found '/class/usb_endpoint/usbdev5.8_ep88' for 'usbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3609]: update_link: compare (our own) priority of '/class/usb_endpoint/usbdev5.8_ep88' 0 >= 0
>Dec 20 18:21:58 baja udevd-event[3609]: update_link: 'usbdev5.8_ep88' with target 'bus/usb/5/8_ep/88' has the highest priority 0, create it
>Dec 20 18:21:58 baja udevd-event[3609]: node_symlink: creating symlink '/dev/usbdev5.8_ep88' to 'bus/usb/5/8_ep/88'
>Dec 20 18:21:58 baja udevd-event[3609]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:58 baja udevd-event[3609]: pass_env_to_socket: passed 309 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:58 baja udevd-event[3609]: run_program: '/sbin/pam_console_apply /dev/bus/usb/5/8_ep/88 /dev/usbdev5.8_ep88'
>Dec 20 18:21:58 baja udevd-event[3606]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep82: No such file or directory
>Dec 20 18:21:58 baja udevd-event[3606]: udev_node_add: creating device node '/dev/bus/usb/5/8_ep/82', major=251, minor=11, mode=0644, uid=0, gid=0
>Dec 20 18:21:58 baja udevd-event[3609]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:58 baja udevd-event[3609]: udev_event_run: seq 1043 finished
>Dec 20 18:21:58 baja udevd[3585]: udev_done: seq 1043, pid [3609] exit with 0, 1 seconds old
>Dec 20 18:21:58 baja udevd-event[3606]: name_index: creating index: '/dev/.udev/names/usbdev5.8_ep82/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3606]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f5\x2f8_ep\x2f82/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3606]: udev_node_update_symlinks: update symlink 'usbdev5.8_ep82' of '/class/usb_endpoint/usbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3606]: udev_db_get_devices_by_name: found index directory '/dev/.udev/names/usbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3606]: update_link: found 1 devices with name 'usbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3606]: update_link: found '/class/usb_endpoint/usbdev5.8_ep82' for 'usbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3607]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep01: No such file or directory
>Dec 20 18:21:58 baja udevd-event[3606]: update_link: compare (our own) priority of '/class/usb_endpoint/usbdev5.8_ep82' 0 >= 0
>Dec 20 18:21:58 baja udevd-event[3606]: update_link: 'usbdev5.8_ep82' with target 'bus/usb/5/8_ep/82' has the highest priority 0, create it
>Dec 20 18:21:58 baja udevd-event[3607]: udev_node_add: creating device node '/dev/bus/usb/5/8_ep/01', major=251, minor=12, mode=0644, uid=0, gid=0
>Dec 20 18:21:58 baja udevd-event[3606]: node_symlink: creating symlink '/dev/usbdev5.8_ep82' to 'bus/usb/5/8_ep/82'
>Dec 20 18:21:58 baja udevd-event[3606]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:58 baja udevd-event[3606]: pass_env_to_socket: passed 309 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:58 baja udevd-event[3607]: name_index: creating index: '/dev/.udev/names/usbdev5.8_ep01/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f5\x2f8_ep\x2f01/\x2fclass\x2fusb_endpoint\x2fusbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3606]: run_program: '/sbin/pam_console_apply /dev/bus/usb/5/8_ep/82 /dev/usbdev5.8_ep82'
>Dec 20 18:21:58 baja udevd-event[3607]: udev_node_update_symlinks: update symlink 'usbdev5.8_ep01' of '/class/usb_endpoint/usbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: udev_db_get_devices_by_name: found index directory '/dev/.udev/names/usbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: update_link: found 1 devices with name 'usbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: update_link: found '/class/usb_endpoint/usbdev5.8_ep01' for 'usbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: update_link: compare (our own) priority of '/class/usb_endpoint/usbdev5.8_ep01' 0 >= 0
>Dec 20 18:21:58 baja udevd-event[3607]: update_link: 'usbdev5.8_ep01' with target 'bus/usb/5/8_ep/01' has the highest priority 0, create it
>Dec 20 18:21:58 baja udevd-event[3607]: node_symlink: creating symlink '/dev/usbdev5.8_ep01' to 'bus/usb/5/8_ep/01'
>Dec 20 18:21:58 baja udevd-event[3606]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:58 baja udevd-event[3606]: udev_event_run: seq 1040 finished
>Dec 20 18:21:58 baja udevd-event[3607]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:58 baja udevd[3585]: udev_done: seq 1040, pid [3606] exit with 0, 1 seconds old
>Dec 20 18:21:58 baja udevd-event[3607]: pass_env_to_socket: passed 309 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:58 baja udevd-event[3607]: run_program: '/sbin/pam_console_apply /dev/bus/usb/5/8_ep/01 /dev/usbdev5.8_ep01'
>Dec 20 18:21:58 baja udevd-event[3607]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:58 baja udevd-event[3607]: udev_event_run: seq 1041 finished
>Dec 20 18:21:58 baja udevd[3585]: udev_done: seq 1041, pid [3607] exit with 0, 1 seconds old
>Dec 20 18:21:59 baja udevd-event[3610]: udev_db_get_device: no db file to read /dev/.udev/db/\x2fclass\x2fusb_device\x2fusbdev5.8: No such file or directory
>Dec 20 18:21:59 baja udevd-event[3610]: udev_node_add: creating device node '/dev/bus/usb/005/008', major=189, minor=519, mode=0644, uid=0, gid=0
>Dec 20 18:21:59 baja udevd-event[3610]: udev_node_mknod: preserve file '/dev/bus/usb/005/008', because it has correct dev_t
>Dec 20 18:21:59 baja udevd-event[3610]: name_index: creating index: '/dev/.udev/names/bus\x2fusb\x2f005\x2f008/\x2fclass\x2fusb_device\x2fusbdev5.8'
>Dec 20 18:21:59 baja udevd-event[3610]: pass_env_to_socket: passed -1 bytes to socket '/org/kernel/udev/monitor',
>Dec 20 18:21:59 baja udevd-event[3610]: pass_env_to_socket: passed 273 bytes to socket '/org/freedesktop/hal/udev_event',
>Dec 20 18:21:59 baja udevd-event[3610]: run_program: '/sbin/pam_console_apply /dev/bus/usb/005/008 '
>Dec 20 18:21:59 baja udevd-event[3610]: run_program: '/sbin/pam_console_apply' returned with status 0
>Dec 20 18:21:59 baja udevd-event[3610]: udev_event_run: seq 1044 finished
>Dec 20 18:21:59 baja udevd[3585]: udev_done: seq 1044, pid [3610] exit with 0, 2 seconds old
>
>Any ideas?
>
>Thanks,
>
>Mark
>
>
>

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System