Hi, I found a weird behavior, I don't know if it is a bug. On my codes I usually look into "/dev/serial/by-id/" to list available serial ports. I discovered that when I use two FT2232(USB to dual serial port) I only see the last connected chip not both. If look into "/dev/serial/by-path/" I see all of them and also into "/sys/bus/usb-serial/devices/". Example: [jeandet@machin opt]$ ls -al /sys/bus/usb-serial/devices/ total 0 drwxr-xr-x 2 root root 0 28 avril 10:40 . drwxr-xr-x 4 root root 0 28 avril 10:40 .. lrwxrwxrwx 1 root root 0 28 avril 10:35 ttyUSB0 -> ../../../devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/ttyUSB0 lrwxrwxrwx 1 root root 0 28 avril 10:35 ttyUSB1 -> ../../../devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.1/ttyUSB1 lrwxrwxrwx 1 root root 0 28 avril 10:35 ttyUSB2 -> ../../../devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/ttyUSB2 lrwxrwxrwx 1 root root 0 28 avril 10:35 ttyUSB3 -> ../../../devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/ttyUSB3 [jeandet@machin opt]$ ls -al /dev/serial/by-id/ total 0 drwxr-xr-x 2 root root 80 28 avril 10:32 . drwxr-xr-x 4 root root 80 28 avril 10:32 .. lrwxrwxrwx 1 root root 13 28 avril 10:32 usb-FTDI_Dual_RS232-HS-if00-port0 -> ../../ttyUSB2 lrwxrwxrwx 1 root root 13 28 avril 10:32 usb-FTDI_Dual_RS232-HS-if01-port0 -> ../../ttyUSB3 [jeandet@machin opt]$ ls -al /dev/serial/by-path/ total 0 drwxr-xr-x 2 root root 120 28 avril 10:32 . drwxr-xr-x 4 root root 80 28 avril 10:32 .. lrwxrwxrwx 1 root root 13 28 avril 10:32 pci-0000:00:14.0-usb-0:1:1.0-port0 -> ../../ttyUSB2 lrwxrwxrwx 1 root root 13 28 avril 10:32 pci-0000:00:14.0-usb-0:1:1.1-port0 -> ../../ttyUSB3 lrwxrwxrwx 1 root root 13 28 avril 10:32 pci-0000:00:14.0-usb-0:2.2:1.0-port0 -> ../../ttyUSB0 lrwxrwxrwx 1 root root 13 28 avril 10:32 pci-0000:00:14.0-usb-0:2.2:1.1-port0 -> ../../ttyUSB1 Should I consider that as a bug? If yes where should I report this issue? Which package might be the cause, the kernel, udev? Best regards, Alexis. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org