[Libdlo] Detecting different DL chips

[Steve (Endurance)]

On 04 Jun, Andy Fisher <a.j.fisher at displaylink.com> wrote:
> Hi,
>
> We have had a number of requests as to how to detect which DL chip is in a
> given product. Time doesn't permit working this into libdlo at the moment
> so I am posting a python code snippet that will hopefully help in the
> meantime. 
>
> More recent products support a capability description in the USB
> descriptors. However to be more complete the code example will interrogate
> the device at a lower level if this descriptor is not present. The example
> requires libusb and will return a dictionary with information including
> the DL device, memory sizes, max resolutions etc.

The bare bones of this functionality is implemented in libdlo in the
check_device() function of dlo_usb.c (search for the string "type of
device") so that'd probably be the place to insert a better implementation
into the library for future reference.

Thanks,

Steve

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Stephen Revill, Technical Project Leader           Tel: +44 (0) 1353 740 267
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