On Sat, Jul 5, 2014 at 11:31 PM, Greg KH <greg@xxxxxxxxx> wrote: > On Sat, Jul 05, 2014 at 10:18:31PM -0400, shawn wilson wrote: >> I've got a few usb to 4 serial port hubs. The problem is that >> sometimes the ttyUSB* devs get resorted. I'm trying to write rules to >> handle them (and maybe name the devices after the machines they're >> connected to) however, I'm stuck because they only show up as one usb >> device (and not another usb hub with a serial device on each port): > > What's wrong with the symlinks that show up in /dev/serial/ that should > be "persistent"? > Yes, I think that'll work (though if it's possible, it would be cool to figure out how to write the udev rule for it). This is weird too (I think probably a bug?): # ls /dev/serial/by-path/ -l total 0 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:3:1.0-port0 -> ../../ttyUSB0 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:3:1.0-port1 -> ../../ttyUSB1 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:3:1.0-port2 -> ../../ttyUSB2 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:3:1.0-port3 -> ../../ttyUSB3 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:4:1.0-port0 -> ../../ttyUSB4 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:4:1.0-port1 -> ../../ttyUSB5 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:4:1.0-port2 -> ../../ttyUSB6 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:4:1.0-port3 -> ../../ttyUSB7 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:5:1.0-port0 -> ../../ttyUSB8 lrwxrwxrwx 1 root root 13 Jun 19 12:55 pci-0000:00:1d.7-usb-0:5:1.0-port1 -> ../../ttyUSB9 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:5:1.0-port2 -> ../../ttyUSB10 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:5:1.0-port3 -> ../../ttyUSB11 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:6:1.0-port0 -> ../../ttyUSB12 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:6:1.0-port1 -> ../../ttyUSB13 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:6:1.0-port2 -> ../../ttyUSB14 lrwxrwxrwx 1 root root 14 Jun 19 12:55 pci-0000:00:1d.7-usb-0:6:1.0-port3 -> ../../ttyUSB15 # ls /dev/serial/by-id/ -l total 0 lrwxrwxrwx 1 root root 14 Jun 19 12:55 usb-Keyspan__a_division_of_InnoSys_Inc._Keyspan_USA-49WG-if00-port0 -> ../../ttyUSB12 lrwxrwxrwx 1 root root 13 Jun 19 12:55 usb-Keyspan__a_division_of_InnoSys_Inc._Keyspan_USA-49WG-if00-port1 -> ../../ttyUSB9 lrwxrwxrwx 1 root root 14 Jun 19 12:55 usb-Keyspan__a_division_of_InnoSys_Inc._Keyspan_USA-49WG-if00-port2 -> ../../ttyUSB14 lrwxrwxrwx 1 root root 13 Jun 19 12:55 usb-Keyspan__a_division_of_InnoSys_Inc._Keyspan_USA-49WG-if00-port3 -> ../../ttyUSB7 -- 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
