On Thu, 22 Nov 2007, Chris Frey wrote: > On Fri, Nov 16, 2007 at 01:59:16PM -0500, Alan Stern wrote: > > > On Fri, 16 Nov 2007, Martin Owens wrote: > > > As you can see it needs to be put in the second mode anyway, but there > > > is a third mode which is just the database stuff, without the mass > > > storage device. I believe the existing barry project is attempting to > > > claim all interfaces including the MSD one which is where it runs into > > > problems. > > Hi, > > I'm the lead developer of the Barry project. > > I think the modes Martin is talking about is that the Blackberry Pearl, > and similar devices, can reboot itself and present 3 different > product ID's. > > The most useful of these product ID's is 0004, which presents two > configurations: a Mass Storage, and a class 255 (the Database config).
You are mixing up "configuration" and "interface". I think you mean "interface" here (configurations don't have classes but interfaces do). > The problem is that usb_storage sees the Mass Storage configuration, > and uses it. When Barry wants to use the Database configuration, > there's a conflict. What's the conflict? > > Okay, that seems straightforward enough. The solution is (obviously) > > to make the barry project avoid trying to claim the mass-storage > > interface. > > > > It shouldn't be hard to do. You can tell which interface is > > mass-storage by checking whether the bInterfaceClass value is 0x08. If > > it is, simply have the program skip over the interface. The function > > call you need to avoid is usb_claim_interface(). > > Barry doesn't use the Mass Storage configuration at all. It uses > libusb to call set_configuration on the Database configuration, and then > usb_claim_interface on that. If I comment out the claim_interface > call, I still get the error on set_configuration. Now you're sounding even more confused. Which are you talking about, configurations or interfaces? You say the set_configuration call returns an error? Have you tried turning on the usbfs_snoop parameter for the usbcore module to see what shows up in the kernel log? Have you verified that the configuration you're trying to install actually exists? Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Barry-devel mailing list Barry-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/barry-devel
