udev and bInterfaceNumber

[tonymcconnell]

Hello,

trying to create udev rules for individual naming of a USB multiport serial device:

SUBSYSTEMS=="usb",ATTRS{serial}=="FT3HW1KP",ATTRS{bInterfaceNumber}=="00",MODE="0666",SYMLINK+="tty_rs232Modem",OPTIONS+="last_rule"
SUBSYSTEMS=="usb",ATTRS{serial}=="FT3HW1KP",ATTRS{bInterfaceNumber}=="01",MODE="0666",SYMLINK+="tty_rs232iso",OPTIONS+="last_rule"
SUBSYSTEMS=="usb",ATTRS{serial}=="FTC9XO8W",MODE="0666",SYMLINK+="tty_rs422iso1",OPTIONS+="last_rule"
SUBSYSTEMS=="usb",ATTRS{serial}=="FTC9XO8O",MODE="0666",SYMLINK+="tty_rs422iso2",OPTIONS+="last_rule"

However, the bInterfaceNumber part doesn't seem to work; the latter two rules work OK.

Using, udev-124-1.fc9.2.i386

If anybody has any ideas that would be great!

[brebs]

Which *filename* are these rules in? Rules are processed in order.

Turn on udev debugging, to help see what's going on - "man udevadm".

[tonymcconnell]

It works OK if I change the first two rules to:

DRIVERS=="ftdi_sio",SUBSYSTEMS=="usb",ATTRS{bInterfaceNumber}=="00",ATTRS{../serial}=="FT3HW1KP",SYMLINK+="tty_rs232Modem",OPTIONS+="last_rule"
DRIVERS=="ftdi_sio",SUBSYSTEMS=="usb",ATTRS{bInterfaceNumber}=="01",ATTRS{../serial}=="FT3HW1KP",SYMLINK+="tty_rs232iso",OPTIONS+="last_rule"

File name is "99-persistent_usb_serial.rules", by the way.

Was getting confused about how to have things in the tree of attributes ... although I thought it was supposed to traverse the parent automatically?