I have been trying to overcome the loss of the '%e' enumeration
variable to make a version of the Edgeport rules that will work with
the current version of Udev.
Old version:
BUS="usb" SYSFS{idVendor}="1608" SYSFS{idProduct}=="0244"
SYSFS{serial}=="*-0" NAME="%k" SYMLINK="ttyEDGE8_0_%e"
BUS="usb" SYSFS{idVendor}="1608" SYSFS{idProduct}=="0244"
SYSFS{serial}=="*-1" NAME="%k" SYMLINK="ttyEDGE8_1_%e"
Replacing it with '%m" doesn't work, because then the numbering is
dependent on the presence of other USB-serial devices.
I tried this:
ENV{portnum}=ATTRS{port_number}
BUS=="usb",SYSFS{idVendor}=="1608",SYSFS{idProduct}=="0244",SYSFS{serial}=="I01846004-0",
NAME="%k",SYMLINK="ttyEDGE8_%E{portnum}"`
BUS=="usb",SYSFS{idVendor}=="1608",SYSFS{idProduct}=="0244",SYSFS{serial}=="I01846004-1",
NAME="%k",SYMLINK="ttyEDGE8_%E{portnum}"`
BUS=="usb",SYSFS{idVendor}=="1608",SYSFS{idProduct}=="0244",SYSFS{serial}=="I01846004-2",
NAME="%k",SYMLINK="ttyEDGE8_%E{portnum}"`
BUS=="usb",SYSFS{idVendor}=="1608",SYSFS{idProduct}=="0244",SYSFS{serial}=="I01846004-3",
NAME="%k",SYMLINK="ttyEDGE8_%E{portnum}"`
but this didn't work, I think because the 'port_number' attribute is
defined at a different hierarchical level than the 'serial' attribute:
looking at parent device
'/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2.4/7-2.4:1.0/ttyUSB0':
KERNELS=="ttyUSB0"
SUBSYSTEMS=="usb-serial"
DRIVERS=="edgeport_ti_2"
ATTRS{uart_mode}=="0"
ATTRS{port_number}=="0"
looking at parent device
'/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2.4/7-2.4:1.0':
[....]
looking at parent device '/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2.4':
KERNELS=="7-2.4"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{configuration}==""
ATTRS{bNumInterfaces}==" 1"
ATTRS{bConfigurationValue}=="1"
ATTRS{bmAttributes}=="e0"
ATTRS{bMaxPower}==" 0mA"
ATTRS{urbnum}=="38"
ATTRS{idVendor}=="1608"
ATTRS{idProduct}=="0244"
ATTRS{bcdDevice}=="0001"
ATTRS{bDeviceClass}=="ff"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bDeviceProtocol}=="ff"
ATTRS{bNumConfigurations}=="1"
ATTRS{bMaxPacketSize0}=="8"
ATTRS{speed}=="12"
ATTRS{busnum}=="7"
ATTRS{devnum}=="18"
ATTRS{version}==" 1.10"
ATTRS{maxchild}=="0"
ATTRS{quirks}=="0x0"
ATTRS{authorized}=="1"
ATTRS{manufacturer}=="Digi International"
ATTRS{product}=="Edgeport/8"
ATTRS{serial}=="I01846004-0"
Any clues or ideas would be welcome!
--
Philip J. Tait
Software Engineer, FMOS
http://subarutelescope.org
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