On Mon, Dec 21, 2009 at 09:47:02AM +1100, Roger Salisbury wrote: > > > Hi All ..... any confirmation or help greatly appreciated > > To clarify further.... > > My device uses FT232RL from Future Technology Devices International > www.ftdichip.com > > I purchased from > http://www.dontronics-shop.com/super4-usb-relay-module.html > > My experience is very limited, the problem could be other than the libraries > , > & the manufactures (TCTEC) (www.emx.net.au) . > > The support folks from TCTEC (http://www.emx.net.au/super4usbrelay.htm) > tell me that FTPI developers will update the libftd2xx.so > library, > in the 1st quarter of 2010. > > Whether this is true , and would it fix the problem I don't know. Then ask them, we have no control over their libraries. > ______PROBLEM____ > > libftd2xx.so.0.4.1X (ALL) libraries all have a major defiency. > > from kernels 2.6.18 up to 2.6.32 kernels they all suffer the same problem. > > The /dev/ttyUSBX disappears when you unplug the device. .... as you would > expect! > > BUT > > The disappearing of the device occurs when it is still plugged in. > > All you need to do is run the "lrelayset" command. either listing , setting > or unsetting will do. > > Although the /dev listing disappears the "lrelayset" command is still > usable/active.! This is a library issue, they are disconnecting the device from the driver, which causes the device node to go away. Please contact them to fix their code, nothing we can do about it, sorry. 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
