[Ftdi-usb-sio-devel] cannot open port after improper closing

[Paul T. <pth...@gm...>]

I'm using the ftdi_sio driver in the 2.6.28.4 kernel. Sometimes when I
kill an app, I can no longer access /dev/ttyUSB0 (i.e. close never got
called). minicom, my app & more all fail. "more /dev/ttyUSB0" returns
"/dev/ttyUSB0: Input/output error". I don't get any errors in dmesg.
This persists after unloading and reloading the module. The platform
is the AT91RM9200 (an arm9 processor).

Does anyone else see this? Am I missing something small?

thanks,
Paul