[Libdlo] DisplayLink driver for BlackBerry

Tim Green timothy.j.green at gmail.com
Fri Aug 2 12:51:37 PDT 2013

Hi Alex,

First I have to ask: does your phone have host mode USB? Without this
you are out of luck. Can you plug a USB keyboard into your phone to

To answer your questions:
1. Yes, libdlo is a user mode library to draw on DisplayLink displays.

2. Yes, USB access is obviously a must. I don't know how BB10 arranges
its graphics. A simple screen sharing app is probably scraping the
screen contents (maybe even just doing a basic screen shot as
frequently as possible?)

3. The current DisplayLink Linux kernel driver provides a standard
Frame Buffer (FB) interface. X can then use this.

Hope this helps!

On 2 August 2013 19:52, Alexander Todorov <atodorov at otb.bg> wrote:
> Hi guys,
> it's been a while since I last followed this list.
> Is anybody aware of or working on a driver port for BlackBerry 10 OS? I'd
> love to connect mine to a docking station (hasn't been able to test it yet)
> without using the HDMI port - just USB.
> In case nobody is working here are some questions, in order to figure out if
> this is technically possible:
> 1) IIRC there was an initial user space implementation for DisplayLink
> driver, I think this is the 'libdlo' library itself, can somebody remind me
> if this is correct.
> BB apps permissions/security is pretty much every app for itself so a driver
> needs to be build as a user space app.
> 2) What sort of low level API access does the driver need? I can think about
> low level read/write access to the USB bus and possibly the graphical
> server. Anything I'm missing?
> In Linux how does the driver communicate with X ? For the record: I'm not
> sure if BB 10 even uses Xorg or something else, or if they have API for
> this. But I've seen "desktop" sharing between phones so it should be doable.
> BB 10 is essentially QNX and has a C and C++ development stack so I think it
> could be possible to create a driver app.
> Regards,
> Alex
> --
> http://atodorov.org
> http://twitter.com/atodorov_
> _______________________________________________
> Libdlo mailing list
> Libdlo at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/libdlo

More information about the Libdlo mailing list