I had my keyspan USB serial adapter 19HS working with FC5, but now that I have upgraded to FC6 it is no longer fully functional. It is detected, and I get one way communication through it when I use minicom. I am able to send but not receive, I determined this by connecting two machine via serial. Is this a problem with the USB serial adapter, or do I not have the associated serial port configured correctly? Here is the output from the startup: usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb usbcore: registered new interface driver libusual usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver usb usb1: configuration #1 chosen from 1 choice usb usb2: configuration #1 chosen from 1 choice usb usb3: configuration #1 chosen from 1 choice usb usb4: configuration #1 chosen from 1 choice usb 2-2: new full speed USB device using uhci_hcd and address 3 usb 2-2: configuration #1 chosen from 2 choices SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts usbcore: registered new interface driver usbserial drivers/usb/serial/usb-serial.c: USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic drivers/usb/serial/usb-serial.c: USB Serial Driver core drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan - (without firmware) drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 1 port adapter drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 2 port adapter drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 4 port adapter usb 2-2: Keyspan 1 port adapter converter now attached to ttyUSB0 usbcore: registered new interface driver keyspan drivers/usb/serial/keyspan.c: v1.1.4:Keyspan USB to Serial Converter Driver Thanks for any help. Matt