On Wed, Dec 3, 2008 at 10:36, Kay Sievers <kay.sievers@xxxxxxxx> wrote: > On Sun, Nov 30, 2008 at 00:25, <janare@xxxxxxx> wrote: >> I have 3 usb devices connected to my PC. All of them are identical. >> >> Lets call them device1, device2 and device3 >> >> They are beeing detected as ttyUSB0 (device1), ttyUSB1(device2) and >> ttyUSB2(device3), which is exactly what I want. >> >> The only problem is that when I restart, they often get mixed, and detected >> ttyUSB0(device2), ttyUSB1(device3) and ttyUSB2(device1) or any other order. >> >> I can't create rules for these device from serialnumber, or other details >> other than usb-connection port. > > There is no straight-forward solution, you could use just now. We will > need to make "path_id" working for usb-serial devices, and create a > bunch of udev rules, so that we create persistent links for serial > devices based on the port the device is connected to. Just like we do > for disks, video, input today: > I will see what I can do. I've committed /dev/serial/ links which should uniquely identify your 3 identical devices, if they are always connected to the same controllers/hubs/ports: http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=bc4c751802147f1ff21bf52a57a2976754949453 If you have recent udev version, you can replace: /lib/udev/path_id with: http://git.kernel.org/?p=linux/hotplug/udev.git;a=blob_plain;f=extras/path_id/path_id;h=f45f62ad32eb1cf0a57e96e1ff1b895d357c0dd8 and add: http://git.kernel.org/?p=linux/hotplug/udev.git;a=blob_plain;f=rules/rules.d/60-persistent-serial.rules;h=df10606e07639871272a85f4a9839aa32e9dcef2 to: /etc/udev/rules.d/ Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
