Re: [PATCH 1/1] USB: option: add support for Telit LE920

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Daniele Palmas <dnlplm@xxxxxxxxx> writes:

> The output of lsusb for interface #1 is the following:
>
> Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass       255 Vendor Specific Class
>       bInterfaceSubClass     66
>       bInterfaceProtocol      1
>       iInterface              0
>
> It should be an adb device, so probably it is not needed to blacklist
> it. Should I resend a new patch with only interface #5 reserved?

You could have used USB_DEVICE_AND_INTERFACE_INFO() matching on all
ff/ff/ff to avoid blacklisting the adb interface, but IMHO the patch is
fine as it is.

This being an Android device raises another question though: Are these
interface numbers static?  I assume you can e.g. disable adb?  What
happens to the descriptors then?  Does the device change pid, or are the
interfaces renumbered?


Bjørn
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