I'm going to be writing images to usb flash disks on 15
ports on multiple hubs. I need to know which port on a hub
is associated with which /dev/sd?? device, so I can tell the
user where to insert their flash key and when the write is
done.
About 4yrs ago (with '=' syntax), systool would allow me to
write udev rules like
#if want flash memory recognised differently
#in different positions on external hub
BUS="usb", ID="1-1.1", SYSFS{manufacturer}="PNY ", SYSFS{product}="USB 2.0 FD ", NAME="flashA%n"
BUS="usb", ID="1-1.2", SYSFS{manufacturer}="PNY ", SYSFS{product}="USB 2.0 FD ", NAME="flashB%n"
BUS="usb", ID="1-1.3", SYSFS{manufacturer}="PNY ", SYSFS{product}="USB 2.0 FD ", NAME="flashC%n"
BUS="usb", ID="1-1.4", SYSFS{manufacturer}="PNY ", SYSFS{product}="USB 2.0 FD ", NAME="flashD%n"
I'm now running sysfsutils v-2.1.0, udevd v111, uname
-r=2.6.22.19
My attempt to get this to work now looking at the usb bus
#systool -vb usb
gives
Device path = "/sys/devices/pci0000:00/0000:00:1d.7/usb4/4-3"
.
.
product = "USB Flash Memory"
the following rule (constructed by swiping the above "Device
path") is ignored (I get /dev/sda* for the usb drive)
BUS=="usb", SYSFS{Device path}=="/sys/devices/pci0000:00/0000:00:1d.7/usb4/4-3", NAME="flashB%n"
Instead I looked at the scsi bus
# systool -vb scsi
Bus = "scsi"
Device path = "/sys/devices/pci0000:00/0000:00:1d.7/usb4/4-3/4-3:1.0/host5/target5:0:0/5:0:0:0"
.
.
model = "USB Flash Memory"
since the host/target changes on each insertion I tried
these two rules which are also ignored (get /dev/sda*)
BUS=="scsi", SYSFS{Device path}=="/sys/devices/pci0000:00/0000:00:1d.7/usb4/4-3/4-3:1.0/*", NAME="flashB%n"
BUS=="scsi", SYSFS{Device path}=="/sys/devices/pci0000:00/0000:00:1d.7/usb4/*", NAME="flashB%n"
As a control to show that I can construct a rule that
works, these work
#OK gives devices pny*
BUS=="scsi", SYSFS{vendor}==" ", SYSFS{model}=="USB Flash Memory", NAME="pny%n"
#OK gives devices flashB*
BUS=="scsi", SYSFS{vendor}==" ", SYSFS{model}=="USB Flash Memory", NAME="flashB%n"
#OK gives flashB*
BUS=="usb", SYSFS{product}=="USB Flash Memory", NAME="flashB%n"
#this doesn't work, gives devices like usbdev4.15_ep00
BUS=="scsi", SYSFS{modalias}="scsi:t-0x00", NAME="flashB%n"
What should I do to give the device a name determined from
an absolute location?
Thanks Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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