Fast SIM cards loosing bytes

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Dean Chester dean.g.chester at gmail.com
Mon Jan 27 11:05:59 UTC 2014


Thanks Min it works a treat it also fixes the issues running in a
virtualised environment which I do for Ubuntu.

Is your new firmware under the same licence as the original?

Kind Regards,

Dean Chester


On 24 January 2014 21:55, Peter Stuge <peter at stuge.se> wrote:

> Min Xu wrote:
> > I would be happy to send them the USB protocol changes.  However,
> > it will be INCOMPATIBLE with earlier firmware based SIMTrace boards.
>
> There is a standardised way to deal with protocol changes in USB;
> change either the bDeviceProtocol field in the device descriptor or
> the bInterfaceProtocol field in the interface descriptor, and make
> host software do the appropriate thing based on the descriptors of
> the connected device.
>
> Of course only new host software will work with the new protocol, but
> this way new host software still continues to work with the old protocol.
>
>
> //Peter
>
>
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