[Kde-hardware-devel] udisks2 status for floppy drives

[Jacopo De Simoi]

On Wednesday 30 April 2014 17:45:27 Daniel Nicoletti wrote:
> IMHO the icon must be there as most PC's floppy drives
> that I know of doesn't inform about having a disk or not,
> I think if a user doesn't want to see it, he
> could just disable it in the BIOS.

However, this is not consistent with what we do with other removable media 
(e.g. optical discs). Besides, it does not make sense to offer the “ mount” 
option if there is no disc, so some knowledge of the status of the drive would 
be needed anyways. 

mmh 


> 
> 2014-04-30 17:36 GMT-03:00 Jacopo De Simoi <wilderkde at gmail.com>:
> > I am trying to fix bug 318061 i.e. the fact that floppy drives appear in
> > the notifier even if no disc is inserted. I've been able to reproduce
> > with udisks2
> > 
> > The situation for udisks2 is indeed quite messy. According to the specs:
> > 
> > ---
> > The "MediaChangeDetected" property
> > 
> > MediaChangeDetected  readable   b
> > Set to TRUE only if media changes are detected.
> > 
> > Media changes are detected on all modern disk drives through either
> > polling or an asynchronous notification mechanism. The only known disk
> > drives that cannot report media changes are PC floppy drives.
> > 
> > The "Size" property
> > 
> > Size  readable   t
> > The size of the drive (or the media currently in the drive).
> > 
> > This is always 0 if "MediaChangeDetected" is FALSE.
> > 
> > ---
> > 
> > This sucks big time; the size of any floppy disc will always be reported
> > as 0; so we can't filter 0-sized devices on the client side.
> > 
> > I propose to “Ignore” volumes which are floppy drives and whose UUID is
> > empty. In this way empty drives should not be displayed by either dolphin
> > or the notifier.
> > 
> > We would then need to listen for changes in the uuid property to ensure
> > that the system reacts to insertion of actual floppy discs.
> > 
> > Finally, we should change the volume description for floppy discs, as
> > otherwise they would always appear as 0B removable disc.
> > 
> > If nobody has objections, I can work on implementing the above proposal,
> > otherwise we should discuss another strategy.
> > 
> > Best,
> > 
> >  __J
> > 
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