Description of problem: The kernel packages 2.6.24-x do not successfully probe the Edgeport/4x USB/serial converters. The io_ti.ko module loads, but does not create device files /dev/ttyUSBx to bind to the serial converter. Under the 2.6.23-x kernel packages the device was successfully discovered and configured. Version-Release number of selected component (if applicable): 2.6.24-x How reproducible: Completely Steps to Reproduce: 1. Boot to 2.6.24-x kernel (any one) 2. Plug in Edgeport/4 to any USB port 3. Check /var/log/messages for progress 4. Check for creation of /dev/ttyUSBx device files Actual results: A listing of /var/log/messages yields the following: Apr 4 05:03:12 tango kernel: usb 4-1: new full speed USB device using uhci_hcd and address 3 Apr 4 05:03:12 tango kernel: usb 4-1: configuration #1 chosen from 1 choice Apr 4 05:03:12 tango kernel: hub 4-1:1.0: USB hub found Apr 4 05:03:12 tango kernel: hub 4-1:1.0: 1 port detected Apr 4 05:03:12 tango kernel: usb 4-1.1: new full speed USB device using uhci_hcd and address 4 Apr 4 05:03:12 tango kernel: usb 4-1.1: configuration #1 chosen from 1 choice Apr 4 05:03:12 tango kernel: usbcore: registered new interface driver usbserial Apr 4 05:03:12 tango kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for generic Apr 4 05:03:12 tango kernel: usbcore: registered new interface driver usbserial_generic Apr 4 05:03:12 tango kernel: drivers/usb/serial/usb-serial.c: USB Serial Driver core Apr 4 05:03:12 tango kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport TI 1 port adapter Apr 4 05:03:12 tango kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport TI 2 port adapter Apr 4 05:03:12 tango kernel: io_ti: probe of 4-1.1:1.0 failed with error -5 Apr 4 05:03:12 tango kernel: usbcore: registered new interface driver io_ti Apr 4 05:03:12 tango kernel: drivers/usb/serial/io_ti.c: Edgeport USB Serial Driver v0.7mode043006 Expected results: Under kernel packages 2.6.23-x the probing of the Edgeport device seems to fail as well, but the driver reattempts the probing: Apr 4 09:23:12 bach kernel: usb 4-1: new full speed USB device using uhci_hcd and address 2 Apr 4 09:23:12 bach kernel: usb 4-1: configuration #1 chosen from 1 choice Apr 4 09:23:12 bach kernel: hub 4-1:1.0: USB hub found Apr 4 09:23:12 bach kernel: hub 4-1:1.0: 1 port detected Apr 4 09:23:12 bach kernel: usb 4-1.1: new full speed USB device using uhci_hcd and address 3 Apr 4 09:23:13 bach kernel: usb 4-1.1: configuration #1 chosen from 1 choice Apr 4 09:23:13 bach kernel: usbcore: registered new interface driver usbserial Apr 4 09:23:13 bach kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for generic Apr 4 09:23:13 bach kernel: usbcore: registered new interface driver usbserial_generic Apr 4 09:23:13 bach kernel: drivers/usb/serial/usb-serial.c: USB Serial Driver core Apr 4 09:23:13 bach kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport TI 1 port adapter Apr 4 09:23:13 bach kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport TI 2 port adapter Apr 4 09:23:13 bach kernel: io_ti 4-1.1:1.0: Edgeport TI 2 port adapter converter detected Apr 4 09:23:14 bach kernel: io_ti: probe of 4-1.1:1.0 failed with error -5 Apr 4 09:23:14 bach kernel: usbcore: registered new interface driver io_ti Apr 4 09:23:14 bach kernel: drivers/usb/serial/io_ti.c: Edgeport USB Serial Driver v0.7mode043006 Apr 4 09:23:14 bach kernel: usb 4-1: USB disconnect, address 2 Apr 4 09:23:14 bach kernel: usb 4-1.1: USB disconnect, address 3 Apr 4 09:23:16 bach kernel: usb 4-1: new full speed USB device using uhci_hcd and address 4 Apr 4 09:23:16 bach kernel: usb 4-1: configuration #1 chosen from 1 choice Apr 4 09:23:16 bach kernel: hub 4-1:1.0: USB hub found Apr 4 09:23:16 bach kernel: hub 4-1:1.0: 2 ports detected Apr 4 09:23:17 bach kernel: usb 4-1.1: new full speed USB device using uhci_hcd and address 5 Apr 4 09:23:17 bach kernel: usb 4-1.1: configuration #1 chosen from 1 choice Apr 4 09:23:17 bach kernel: io_ti 4-1.1:1.0: Edgeport TI 2 port adapter converter detected Apr 4 09:23:18 bach kernel: io_ti: probe of 4-1.1:1.0 failed with error -5 Apr 4 09:23:18 bach kernel: usb 4-1.2: new full speed USB device using uhci_hcd and address 6 Apr 4 09:23:18 bach kernel: usb 4-1.2: configuration #1 chosen from 1 choice Apr 4 09:23:18 bach kernel: io_ti 4-1.2:1.0: Edgeport TI 2 port adapter converter detected Apr 4 09:23:19 bach kernel: usb 4-1.2: Edgeport TI 2 port adapter converter now attached to ttyUSB0 Apr 4 09:23:19 bach kernel: usb 4-1.2: Edgeport TI 2 port adapter converter now attached to ttyUSB1 Apr 4 09:23:19 bach kernel: usb 4-1.1: USB disconnect, address 5 Apr 4 09:23:20 bach kernel: usb 4-1.1: new full speed USB device using uhci_hcd and address 7 Apr 4 09:23:21 bach kernel: usb 4-1.1: configuration #1 chosen from 1 choice Apr 4 09:23:21 bach kernel: io_ti 4-1.1:1.0: Edgeport TI 2 port adapter converter detected Apr 4 09:23:21 bach kernel: usb 4-1.1: Edgeport TI 2 port adapter converter now attached to ttyUSB2 Apr 4 09:23:21 bach kernel: usb 4-1.1: Edgeport TI 2 port adapter converter now attached to ttyUSB3 Additional info: These tests were performed on a Dell Optiplex 745 and a Dell Latitude D610. In each case the Edgeport device is successfully discovered and configured under the 2.6.23-x kernels and is inert under the 2.6.24-x kernels.
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