Date: Fri, 21 Jun 2019 11:08:45 -0600 From: Sergey Manucharian <sm@ara-ler.com> To: Vijay Kumar Banerjee <vijaykumar9597@gmail.com> Cc: freebsd-arm@freebsd.org Subject: Re: Writing to /dev/fb0 Message-ID: <20190621170845.GD2903@eldorado> In-Reply-To: <CAFgkNAkVHccLg15aq9RY5CaT1qV=Bku2KpqOZiLjaNhJJF%2B8=A@mail.gmail.com> References: <CAFgkNAkVHccLg15aq9RY5CaT1qV=Bku2KpqOZiLjaNhJJF%2B8=A@mail.gmail.com>
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Excerpts from Vijay Kumar Banerjee's message from Fri 21-Jun-19 22:25: > Hello everyone, > > I'm working on porting the Framebuffer driver from FreeBSD to RTEMS > for BeagleboneBlack. I am in search of a sample/test application that > I can use to directly access the fb0 device and write something to it. > > The purpose is to test the created fb0 device and work with it without > any heavy application like X. Something as minimalistic as: > `cat /dev/urandom > /dev/fb0` > But this doesn't work on the FreeBSD. Any suggestions on how to > test the fb0 device and how to write random pixels, or maybe draw a line? > The easiest thing you can do is using Qt5 – it supports BSD framebuffer out of the box: <qt5_program> -platform: bsdfb:fb=/dev/fb0 Perfectly works here. -S.
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