On Thu, Feb 14, 2013 at 06:07:38PM -0500, Doug Minett wrote: > Hi, > > I am using Ubuntu's 3.2.0-37 distribution of linux. Is there a known > problem with the module in this version of the kernel? I don't know, but as this is a distro kernel, you really should contact the distro to get support for it, there's nothing we can do with their kernel directly, sorry. > cat /dev/ttyUSB0 results in "no such device" message (checked device > is present with rw r r root root permissions) > > I have tried a number of things to get the Digi Edgeport/4r to work. > > 1) loaded module: modprobe io_edgeport If you plug the device in, the driver should be automatically loaded. > > 2) manually created devices: mknod /dev/ttyUSB[0-3] c 188 0 (is io_edgeport supposed to do this?) You should never have to do this, if the device is present, the device nodes will be created automatically. > 3) output from dmesg: > > [ 3075.917619] usbcore: deregistering interface driver io_edgeport > [ 3075.917652] USB Serial deregistering driver Edgeport 2 port adapter > [ 3075.917666] USB Serial deregistering driver Edgeport 4 port adapter > [ 3075.917676] USB Serial deregistering driver Edgeport 8 port adapter > [ 3075.917685] USB Serial deregistering driver EPiC device > [ 3085.878341] usb 2-1.5: USB disconnect, device number 21 > [ 3085.878345] usb 2-1.5.1: USB disconnect, device number 22 This is your device being removed from the system, can you provide log messages from before this? > [ 3131.433041] USB Serial support registered for Edgeport 2 port adapter > [ 3131.433050] USB Serial support registered for Edgeport 4 port adapter > [ 3131.433058] USB Serial support registered for Edgeport 8 port adapter > [ 3131.433066] USB Serial support registered for EPiC device > [ 3131.433082] usbcore: registered new interface driver io_edgeport > [ 3131.433083] io_edgeport: v2.7:Edgeport USB Serial Driver Did you just load the driver by hand here? Can you try, as root, without the device plugged in: - clear the kernel log: dmesg -c - plug the device in - provide the kernel log output dmesg that should help us here. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
