Description of problem: Since the rawhide kernel moved from 2.6.20 to a pre 2.6.21 version I can't use a programmer with an usb to serial converter chip anymore. It used to attach to the device /dev/ttyUSB0 but now I get ttyUSB132 or ttyUSB148. When I try to use the device I get an error that the device node doesn't exist. Version-Release number of selected component (if applicable): The rawhide kernel from yesterday: 2.6.20-1.2962.fc7PAE Output from dmesg when attaching the device and removing it again: [root@duvel ~]# dmesg usb 1-3: new full speed USB device using ohci_hcd and address 5 PM: Adding info for usb:1-3 PM: Adding info for No Bus:usbdev1.5_ep00 usb 1-3: configuration #1 chosen from 1 choice PM: Adding info for usb:1-3:1.0 ftdi_sio 1-3:1.0: FTDI USB Serial Device converter detected drivers/usb/serial/ftdi_sio.c: Detected FT232BM PM: Adding info for usb-serial:ttyUSB148 PM: Adding info for No Bus:ttyUSB148 usb 1-3: FTDI USB Serial Device converter now attached to ttyUSB148 PM: Adding info for No Bus:usbdev1.5_ep81 PM: Adding info for No Bus:usbdev1.5_ep02 PM: Adding info for No Bus:usbdev1.5 usb 1-3: USB disconnect, address 5 PM: Removing info for No Bus:usbdev1.5_ep81 PM: Removing info for No Bus:usbdev1.5_ep02 PM: Removing info for No Bus:ttyUSB148 ftdi_sio ttyUSB148: FTDI USB Serial Device converter now disconnected from ttyUSB148 PM: Removing info for usb-serial:ttyUSB148 ftdi_sio 1-3:1.0: device disconnected PM: Removing info for usb:1-3:1.0 PM: Removing info for No Bus:usbdev1.5 PM: Removing info for No Bus:usbdev1.5_ep00 PM: Removing info for usb:1-3 Trying to open the device: [root@duvel ~]# cat /dev/ttyUSB148 cat: /dev/ttyUSB148: No such device
Created attachment 149214 [details] Patch from Oliver http://marc.theaimsgroup.com/?l=linux-usb-devel&m=117290684114576&w=2
I am seeing this as well.
This is fixed in the current rawhide kernel version.