On Tue, 31 Jan 2012, Ross Ryles wrote: > Attached is a log file from the same time as the previous USB_DEBUG > stuff. There are several stack traces of hung tasks at the end. It looks like you need to get the OHCI files from the other directory, /sys/kernel/debug/usb/ohci/0000:00:04.0/ -- this log shows that the FTDI device is on bus 4 whereas before I thought it was on bus 3. > The one thing I can think is common between everything that hangs is > they are using a "tty" of some sort. Yeah, that's probably the reason. Alan Stern -- 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