[Voyage-linux] FTDI USB Serial Device converter disconnected

[Jordi Soucheiron]

The real problem is that the code must be aware of possible errors in the
filesystem. Assuming that the file-descriptor will always be available is a
naive approach that should be corrected (at least if you really want the
program to run for months unattended).

*Jordi Soucheiron*
Software Engineer
jsoucheiron at dexmatech.com

*DEXMA*
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2011/9/6 Rainer Stratmann <RainerStratmann at t-online.de>

> Am Tuesday 06 September 2011 08:54:16 schrieb Sascha Blümle:
> > Hi Jordi,
> >
> > is there any attempt going on to fix the basic problem and not only to
> cure
> > the pain? If the device will get disconnected (because of which reason
> > even)
> That will not cause a crash.
> You can close the file with the file-handle.
> And then open another file and get a new file-handle.
> > there will be an open file-handle left and the application will run
> > into eternity.
> >
> > Thank you for your efforts.
> >
> > BR, Sascha
> >
> > > You'll have to manage this kind of exceptions. Using udev to create a
> > > link to the last ttyUSBX device created could be useful. I use rules
> like
> > > this freqüently:
> > > KERNEL=="ttyUSB[0-9]*" , SUBSYSTEMS=="usb", ATTRS{idVendor}=="0403" ,
> > > ATTRS{idProduct}=="6001" , ATTRS{product}=="USB-RS485 Cable" ,
> > > SYMLINK+="ftdi485"
> > >
> > > *Jordi *
>
>
>
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