[Bug 533982] Re: WARNING: at /build/buildd/linux-2.6.32/drivers/usb/serial/usb-serial.c:440 serial_unthrottle 0x7b/0x80 [usbserial]()

[Peter Zotov]

I discovered a cause/fix for this bug. If I launch 'minicom -D
/dev/ttyUSB0' (or anything that will properly initialize the serial
port) prior to my program, it works perfectly and doesn't emits any
kernel messages.

So this bug is caused by invalid initialization of TTY device. Hope this
will help you.

-- 
WARNING: at /build/buildd/linux-2.6.32/drivers/usb/serial/usb-serial.c:440 serial_unthrottle 0x7b/0x80 [usbserial]()
https://bugs.launchpad.net/bugs/533982
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