Date: Tue, 22 Aug 2023 12:23:41 +0800 From: Archimedes Gaviola <archimedes.gaviola@gmail.com> To: freebsd-drivers@freebsd.org Subject: Graphics adapter without framebuffer Message-ID: <CAJFbk7HjnzyD140wVav2Zbj%2BnWveXBxtw1UtxDxs=0hNuYgpqw@mail.gmail.com>
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--000000000000b3174f06037b5cf5 Content-Type: text/plain; charset="UTF-8" Hi, Good day! How does FreeBSD handle graphics device drivers when a chipset doesn't have a framebuffer for the VGA DAC (digital-to-analog converter)? This device is a Fresco Logic FL2000, a USB to VGA adapter. Its design uses the host computer memory to continuously stream the display content via USB. Is there any existing device driver that uses the same approach that I can refer to? Thanks, Archimedes --000000000000b3174f06037b5cf5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Hi,</div><div><br></div><div>Good day!</div><div><br>= </div><div>How does FreeBSD handle graphics device drivers when a chipset d= oesn't have a framebuffer for the VGA DAC (digital-to-analog converter)= ? This device is a Fresco Logic FL2000, a USB to VGA adapter. Its design us= es the host computer memory to continuously stream the display content via = USB. Is there any existing device driver that uses the same approach that I= can refer to?<br></div><div><br></div><div>Thanks,</div><div>Archimedes<br= ></div></div> --000000000000b3174f06037b5cf5--
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