Glitch-free iTunes?

Charles Davis cdavis at
Tue Jul 5 03:49:08 CDT 2011

On 7/5/11 2:23 AM, Damjan Jovanovic wrote:
> On Tue, Jul 5, 2011 at 10:13 AM, Stefan Dösinger <stefandoesinger at> wrote:
>> Do we need full-fledged support for USB drivers for iTunes? I've been told in
>> the past that all we need to do is properly report the new USB drive to iTunes
>> when an iPod is attached, and can leave the USB mass storage handling to the
>> Linuy OS. Of course "properly reporting" isn't as simple as creating a drive
>> letter and setting its type to USB drive.
>> I'm sorry to interrupt this nice project management discussion by throwing in
>> a technical question :-)
> It used to work that way, but Dan Kegel's analysis of a recent version
> of iTunes seems to indicate it now pulls in USBD.SYS. Maybe they
> changed it or maybe they now do direct USB I/O in addition to going
> through the mass storage interface?
I have a Mac, and an iPod Touch. When I plug the iPod in, it doesn't
show up as an external disk in the Finder. So on Mac, iTunes definitely
does direct USB I/O. It's probably safe to assume it does on Windows, too.


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